Answers
Answer:
The strength of the forces holding the particles of a substance together determines its physical state at a given temperature. The stronger the forces the more energy required to overcome them and hence the particles remain in a fixed position and the substance is solid, while weaker forces may allow the particles to move freely making the substance a gas.
Explanation:
In the case of carbon dioxide (CO2), the particles are held together by weak van der Waals forces. These forces are not strong enough to keep the particles in a fixed position, so they are able to move freely and take on the properties of a gas at room temperature.
In the case of water (H2O), the particles are held together by hydrogen bonds. These bonds are stronger than the van der Waals forces in CO2, so the particles are not able to move as freely. As a result, water takes on the properties of a liquid at room temperature.
Salt (NaCl) is made up of positively charged sodium ions (Na+) and negatively charged chloride ions (Cl-). These ions are held together by strong ionic bonds, which keep the particles in a fixed position. As a result, salt takes on the properties of a solid at room temperature.
Related Questions
5 students are working together to build 5 models. All models will represent the molecular structure of sodium bicarbonate, NaHCO3, commonly known as baking soda. The students are using toothpicks to represent bonds and jelly beans to represent atoms.
Red jelly beans represent sodium atoms (Na) White jelly beans represent hydrogen atoms (H) Black jelly beans represent carbon atoms (C) Blue jelly beans represent oxygen atoms (O)
Directions: Identify the number of each color of jelly bean needed to make All five models of NaHCO3. For your answer: Please write down the color of the jelly bean, the element symbol and the number of jelly beans. ex. Y (He) = 3
Answers
In order to build the 5 models of sodium bicarbonate, NaHCO₃, the student requires;
5 Red jelly beans5 White jelly beans5 Black jelly beans, and 15 Blue jelly beansWhat are scientific models?A scientific model is a depiction of a set of concepts, events, or processes that is physical, mathematical, conceptual, or both.
The students need to build five models to represent the molecular structure of sodium bicarbonate, NaHCO₃.
The model is to be built from the following:
Red jelly beans represent sodium atoms
(Na) White jelly beans represent hydrogen atoms
(H) Black jelly beans represent carbon atoms
(C) Blue jelly beans represent oxygen atoms (O)
A molecule of NaHCO₃ contains 1 atom of Na, 1 atom of H, 1 atom of C, and 3 atoms of O.
Therefore, 5 models of NaHCO₃ will require 5 atoms of Na, 5 atoms of H, 5 atoms of C, and 15 atoms of O.
Learn more about scientific models at: https://brainly.com/question/25442414
#SPJ1
What is the frequency of electromagnetic radiation with a wavelength of 420 nm?
Answers
The frequency of electromagnetic radiation with a wavelength of 420 nm is 8 × 10¹⁴Hz.
How to calculate frequency?Wavelength is the length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next.
It is often designated in physics as λ, and corresponds to the velocity of the wave divided by its frequency i.e. λ = v/f
According to this question, a wavelength of 420nm is given, which is equivalent to 4.2 × 10-⁷m.
4.2 × 10-⁷m = 3 × 10⁸/f
f = 3 × 10⁸ ÷ 4.2 × 10-⁷
f = 8 × 10¹⁴Hz
Therefore, 8 × 10¹⁴Hz is the frequency of the wave.
Learn more about frequency at: https://brainly.com/question/14316711
#SPJ1
the radius of a strontium atom is 215 pm. how many strontium atoms would have to be laid side by side to span a distance of 3.46 mm
Answers
The radius of the strontium atom is 215 pm. The strontium atoms would have to be distance of 3.46 mm is 8.0 × 10⁶ atoms.
The information is given as :
The radius, r = 215 pm = 2.15 × 10⁻¹⁰ m
The distance, d = 3.46 mm = 3.46 ×10⁻³ m
The No. of strontium atoms that laid side by side is :
n = d / 2 r
n = 3.46 ×10⁻³ m / (2 × 2.15 × 10⁻¹⁰)
n = 3.46 ×10⁻³ / 4.3 × 10⁻¹⁰ atoms
n = 8.0 × 10⁶ atoms
The number of strontium atoms is 8.0 × 10⁶ atoms.
To learn more about atoms here
https://brainly.com/question/11966999
#SPJ4
Consider the balanced chemical equation. H2O2(aq)+3I−(aq)+2H+(aq)→I3−(aq)+2H2O(l) In the first 15. 0 s of the reaction, the concentration of I− drops from 1. 000 M to 0. 871 M. Part A Predict the rate of change in the concentration of H2O2 (Δ[H2O2]/Δt). Express the rate to three significant figures and include the appropriate units. Δ[H2O2]/Δt Δ [ H 2 O 2 ] / Δ t =
Part B Predict the rate of change in the concentration of I3− (Δ[I3−]/Δt). Express the rate to three significant figures and include the appropriate units. Δ[I3−]/Δt Δ [ I 3 − ] / Δ t =
Answers
The rate of change in concentrations of H2O2 and I3- are 2.8 x 10^-3M/s when the concentration of I− drops from 1. 000 M to 0. 871 M in 15s.
We know that the reaction rate is equal to change in concentration of reactant or product/ time taken.
The change in concentration of I− = 1.000 M - 0.871 M = 0.129M
The time taken to drop the concentration of I- (t) = 15s
Then the required reaction rate for I- = 0.129/15 = 0.0086M/s
The rate of change of concentration of H2O2 is
From the reaction: H2O2(aq)+3I−(aq)+2H+(aq)→I3−(aq)+2H2O(l)
(a) 3 moles of I⁻ are used up for every 1 mole of H2O2
Hence, the rate of change in concentration of H2O2 is:
Δ[H2O2]/Δt = 0.0086 M/sec * 1/3 = 0.00286 = 2.8 x 10^-3M/s
(b) Similarly for every 3 moles of I- 1 mole of I3- is used up. So,
The rate of change in concentration of I3- is:
Δ[I3−]/Δt = 0.0086 M/sec * 1/3 = 0.00286 = 2.8 x 10^-3M/s
Hence the rate of change in concentrations of H2O2 and I3- are same.
To learn ore about concentration click here https://brainly.com/question/10725862
#SPJ4
A student left a sealed jar of water outside her home. Water can be a solid, liquid, or
gas. When she put it outside, the water was a solid. Twelve hours later, the water had
changed phase and was a liquid. What happened to the water molecules?
Answers
injecting chaulmoogra oil caused painful bubbles that further damaged extremely fragile skin. in terms of solubility, why is this?
Answers
Chaulmoogra oil is insoluble in water, which can cause it to form painful bubbles on the skin when injected.
Chaulmoogra oil is an essential oil that has been used historically as a treatment for skin conditions such as leprosy. However, because the oil is not soluble in water, it can be difficult to administer. When it is injected, the oil droplets can form bubbles in the water-based tissue of the skin, causing pain and further damage to already fragile skin.
Additionally, because the oil droplets do not readily mix with the surrounding tissue, they can remain in pockets, leading to irritation and inflammation. This is why chaulmoogra oil is not widely used as a treatment today and have been replaced with other forms of treatment.
To learn more about leprosy visit: https://brainly.com/question/13754601
#SPJ4
cold tcs food should be stored at an internal temperature of
Answers
Do not accept the food or throw the products away if the food temperatures fall outside of acceptable ranges or if TCS food exhibits signs of previous temperature abuse. Keep cold food at or below 41°F.
Do not accept the food or throw the products away if the food temperatures fall outside of acceptable ranges or if TCS food exhibits signs of previous temperature abuse. Keep cold food at or below 41°F. At supermarkets, eateries, and other establishments that sell ready-to-eat meals, customers are always demanding TCS food items. At the point of sale, people are pickier and look for foods from vendors they believe will provide a high-quality and safe product. Managers and employees need to be aware of all the supply chain locations where TCS foods are at risk for time and temperature excursions just for this reason.
Learn more about temperature here:
https://brainly.com/question/11464844
#SPJ4
the structural diversity of carbon-based molecules is determined by which properties? select all that apply.
Answers
Structural diversity of carbon-based molecules is determined by following properties:1. ability of those bonds to rotate freely,2. ability of carbon atom to form four covalent bonds,3. orientation of those bonds in the form of tetrahedron.
What is a covalent bond?Covalent bond is defined as a type of bond which is formed by the mutual sharing of electrons to form electron pairs between the two atoms.These electron pairs are called as bonding pairs or shared pair of electrons.
Due to the sharing of valence electrons , the atoms are able to achieve a stable electronic configuration . Covalent bonding involves many types of interactions like σ bonding,π bonding ,metal-to-metal bonding ,etc.
Learn more about covalent bond,here:
https://brainly.com/question/19382448
#SPJ1
Determine whether each of the following bonds would be polar or nonpolar.
1. H-H
2. H-O
3. H-F
4. Br-Br
5. H-Cl
6. H-N
Determine the electronegativity differences and type of bond. Circle the most electronegative atom.
1. H and I
2. S and O
3. K and Br
4. Si and Cl
5. H and F
6. Se and S
Answers
1) Nonpolar bond
2) Polar bond
3) Polar bond
4) Non polar bond
5) Polar bond
6) Polar bond
What are the polar bonds?We know that the bonds can be said to be polar when the electronegativity difference between the atoms that compose the bond is high. As such, a bond that we have between two elements that are the same would be non polar.
We know that the element that would be the most electronegative would be the non metallic element that is part of the bond. The more the electronegativity difference, the more polar the bonds.
Learn more about polar bonds:https://brainly.com/question/10777799
#SPJ1
13 8 points
A student researches how two types of rocks are formed and records the information below.
Rock Formation
Rock 1: Formed by cooling magma
Rock 2: Formed by compacting and cementing particles together
The student claims that Rock 2 is more likely to contain a fossil than is Rock 1.
Which statement BEST describes the student's claim?
The student is correct because organisms are more likely to be preserved in sedimentary rock than in igneous rock.
The student is correct because organisms are more likely to be preserved in igneous rock than in metamorphic rock.
The student is incorrect because organisms are more likely to be preserved in igneous rock than in sedimentary rock.
The student is incorrect because organisms are more likely to be preserved in igneous rock than in metamorphic rock.
Answers
The student is correct because organisms are more likely to be preserved in sedimentary rock than in igneous rock.
What is sedimentary rock?Sedimentary rocks are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation refers to the processes that cause these particles to settle in place. Sedimentary rocks form from previously existing rocks or fragments of once-living organisms. They form as a result of deposits accumulating on the Earth's surface. Layering or bedding in sedimentary rocks is common. Sedimentary rocks are formed by sediment accumulation. Sedimentary rocks are classified into three types. Clastic sedimentary rocks form as a result of mechanical weathering debris accumulation and lithification. Breccia, conglomerate, sandstone, siltstone, and shale are some examples.
Here,
Because organisms are more likely to be preserved in sedimentary rock than in igneous rock, the student is correct.
To know more about sedimentary rock,
https://brainly.com/question/10709497
#SPJ1
Can someone help me find the mass of water
Heat absorbed by water
Energy released by food (calories)
Energy released by food (cal/g)
% error
Answers
The moisture content is determined as follows, (weight of the container with wet soil minus weight of the container with dry soil) divided by (weight of the container with dry soil minus weight of the container), then multiplied by 100 to express as a percentage.
How are calories consumed by water calculated?You must determine the "Q" for water or the amount of energy absorbed or given out in order to compute the energy that the water has absorbed. When calculating energy in joules or calories, multiply your answer by either 4.184 J/g Co or 1 cal/g Co.The moisture content is determined as follows, (weight of the container with wet soil minus weight of the container with dry soil) divided by (weight of the container with dry soil minus weight of the container), then multiplied by 100 to express as a percentage.The moisture content is determined as follows, (weight of the container with wet soil minus weight of the container with dry soil) divided by (weight of the container with dry soil minus weight of the container), then multiplied by 100 to express as a percentage.The complete question is,
How is water absorption calculated?
To learn more about water absorption refer to:
https://brainly.com/question/574405
#SPJ1
an arctic weather balloon is filled with 24.6l of helium gas inside a prep shed. the temperature inside the shed is 7 degrees celsius. the balloon is then taken outside, where the temperature is 7 degrees celsius. calculate the new volume of the balloon. you may assume the pressure on the balloon stays constant at exactly 1 atm. round your answer to 3 significant digits.
Answers
The balloon's new volume is 24.6L. An arctic weather balloon being inflated using 24.6 litres of helium gas in a prep shed. The shed is seven degrees Celsius inside.
When the balloon is hauled outside, it is seven degrees Celsius outside. Any three-dimensional solid's volume is equal to how much room it occupies. One of these solids can be a cube, a cuboid, a cone, a cylinder, or a sphere. Chemical compounds are composed of a large number of comparable molecules (or molecular entities), which are composed of atoms from various elements bonded together by chemical bonds. Because of this, a molecule composed of atoms from a single element is not a compound.
v1/t1 = v2/t2
24.6/7 = v2/7
v2 = 24.6L
v1 = v2
Learn more about helium gas here
https://brainly.com/question/26408362
#SPJ4
the following mechanism had been proposed for the reaction of h2(g) with icl(g). what rate law would be observed if this is the correct mechanism?
Answers
The rate law that is consistent with the proposed mechanism is [-d[H₂]/dt = k[H₂][ICl].
The sum of the two processes produces the overall reaction, which is:
H₂(g) + 2ICl(g) → 2HCl(g) + I₂(g)
We must take into account the rate-determining step, which is the step with the slowest rate, in order to derive the rate law for the total reaction. It is step 1 in this instance.
H₂(g) + ICl(g) → HI(g) + HCl(g) is the rate-determining step (g)
This step's rate rule is-d[H₂]/dt = k[H₂][ICl]
[ICl]
We can assume that the concentration of HI is always in equilibrium with the concentrations of H₂ and ICl because step 2 is quick.
Therefore, -d[H₂]/dt = k[H₂][ICl] is the rate law for the entire reaction.
Therefore, [-d[H₂]/dt = k[H₂][ICl] is the rate law that is consistent with the hypothesized mechanism.
Learn more about Rate law:
brainly.com/question/29811504
#SPJ4
Simplify the following expression:
Answers
The simplification of the expression will return 3. Option 1.
Simplification of an algebraic expressionThe expression to be simplified is as follows:
3 mol/1 x 1/1 mol
This is the same as: 3 mol x 1/1 x 1 mol
Carrying out the mathematical expressions of the numerator and denominator, we will have:
3 mol/1 mol
Carrying out the division, the 'mol' will cancel out while 3/1 will give us 3.
In other words, 3 mol/1 x 1/1 mol will return a value of 3.
More on algebraic expressions can be found here: https://brainly.com/question/953809
#SPJ1
5. SEP Synthesize Information What does the graph show about the molar volume of a gas? How is molar volume different from molar mass?
Answers
Answer: At a given temperature and pressure, one mole of any gas occupies the same volume. The molar volume is the volume occupied by one mole of any gas, at room temperature and pressure. The molar volume is equal to 24 dm3 (24,000 cm3).
Explanation: its the internet
absorption of uv light in the ozone layer causes the dissociation of oxygen and ozone. which requires longer wavelength to dissociate
Answers
The dissociation of ozone layer requires longer wavelength to dissociate.
The absorption of ultraviolet (UV) light by the ozone layer is a vital part of the Earth's atmosphere, as it helps to protect our planet from the harmful rays of the sun. When UV light is absorbed by the ozone layer, it causes the dissociation of oxygen and ozone molecules.
To achieve this process, longer wavelengths of UV light are required. This is due to the fact that UV light of longer wavelengths has more energy, which is needed to break apart the molecules.
The result of this process is that the ozone layer is able to absorb more of the harmful UV radiation and protect the Earth.
To learn more about ozone, click here:
https://brainly.com/question/14330630
#SPJ4
The balanced equation for the reaction in this lab
is:
2Mn04- (aq) + 5H202(aq) + 6H* (aq) El 2Mn2*(aq) +
502(g) + 8H20(I)
A) Calculate the grams of H202 that were present in 1.00 mL of hydrogen peroxide solution.
B) Assume the density of the H202 solution to be 1.00 g/mL, calculate the percentage of H202 in solution.
C) The accepted percentage of hydrogen peroxide in solution is 3.00%. Calculate the percent error.
Answers
5.75 liters of 3% hydrogen peroxide solution are included by the company in the container.
What is percentage?A measurement used to determine a number's value out of 100 is the percentage.
Due to that,
Hydrogen peroxide solutions in various containers have concentrations of 35% and 3%.
Since the corporation wants an 8-liter container with a 12% hydrogen peroxide concentration.
Use the allegation and combination properties,
35 3 12
9 : 23
Total quantity equals 23x + 9x = 32x.
Since the business requests 8 liters,
Consequently, 32x = 8 x = 1/4.
The concentration of 3% hydrogen peroxide will be equal to = 23x = 23/4 = 5.75.
5.75 liters of 3% hydrogen peroxide solution are needed.
To learn more about hydrogen peroxide refer
https://brainly.com/question/29302613
#SPJ1
what are the five major factors that affect reaction rate?
Answers
Nature of reactants, Concentration of reactants, Catalyst, Temperature, Exposure of light.
1) Reactant nature: The reaction rate is influenced by the reactants' physical characteristics, size, and chemical make-up.
2) Reactant concentration: As the reactant concentration rises, there are more collisions and more opportunities for effective collisions, which raises the rate.
3) Reaction rates may be accelerated by a positive catalyst or slowed down by a negative catalyst.
4) The pace of reaction is quadrupled or doubled when the temperature rises due to an increase in the number of effective collisions.
5) The rate of a photochemical reaction is dependent on the amount of light that is shining on the reacting mixture.
Learn more about concentration here:
https://brainly.com/question/25639730
#SPJ4
how many moles of vanillin are required to produce one mole of iodovanillin? (record one decimal place with no units or other modifiers.)
Answers
The moles of vanillin are required to produce one mole of iodovanillin is one mole of vanillin.
According to the question the reaction is expressed as :
C₈H₈O₃ + NaI + NaOCl ----> C₈H₇IO₃
The vanillin react with sodium iodide and the sodium hypochlorite froms the idovanillin.
The number of moles can be calculated by the formula given below :
The number of moles = mass / molar mass
It is clear from the above balanced equation that :
1 mole of the vanillin required to produce ethe 1 mole of the idovanillin
Thus, the number of moles of the vanillin is one mole to produce the 1 mole of the idovanillin.
To learn more about vanillin here
https://brainly.com/question/27095982
#SPJ4
How many moles of Fe2O3 are formed when 4.2 moles of Fe reacts completely with oxygen?
Answers
The 2 mol Al moles of Fe2O3 are formed when 4.2 moles of Fe reacts completely with oxygen.
What is moles?
A mole is an extremely important unit of measurement for chemists. A mole of anything denotes 602,214,076,000,000,000,000,000 of that thing, just as possessing a dozen eggs denotes having twelve eggs. Chemists use moles to measure extremely small substances like atoms, molecules, and other particles.
What is oxygen?
Because oxygen contains only one type of atom, it is a chemical element, which is a type of substance. Since oxygen has an atomic number of 8, it is represented by the letter O in its formal chemical formula and has eight protons in its nucleus. In nature, molecular oxygen can be discovered.
2 mol Al, 3 mol Fe.
Therefore, 2 mol Al moles of Fe2O3 are formed when 4.2 moles of Fe reacts completely with oxygen.
Learn more about moles from the given link.
https://brainly.com/question/24191825
#SPJ1
150. 0 mL of oxygen is collected over water at 19. 0oC and 100. 0 kPa. If the dry volume becomes 100. 0 mL and the pressure of the dry gas becomes 105. 0 kPa, what will the new temperature be?
Answers
The new temperature be when 150.0 mL of oxygen is 68.6oC collected over water at 19.0oC and 100.0kPa and dry volume becomes 100.0 mL and the pressure of the dry gas becomes 105.0kPa
Given temperature of oxygen (T1) = 19.0oC = 273 + 19 = 292K
The volume of oxygen collected (V1) = 150mL
The pressure of oxygen (P1) = 100kPa
The pressure of dry gas becomes (P2) = 105kPa
The volume of dry gas becomes (V2) = 100mL
The new temperature is = T2
From Gas Laws we know that PV = nRT such that
P1V1/T1 = P2V2/T2
Then T2 = P2V2T1/P1V1
T2 = 105 x 100 x 292 / 100 x 150 = 204.4K = 68.6oC
Such that the new temperature obtained is 68.6oC
To learn more about oxygen click here https://brainly.com/question/13370320
#SPJ4
C + 2zno > CO2 + 27n
How many grams of
carbon dioxide will be
produced if 135 grams
of ZnO is completely
reacted?
Answers
36.5 g [tex]CO_2[/tex] will be produced if 135 grams [tex]ZnO[/tex] is completely reacted.
First, Write a Balanced Equation
[tex]C+2ZnO[/tex] → [tex]Co_2 +2Zn[/tex]
According to Avogadro's Law, "identical volumes contain equal quantities of molecules." This indicates that, in contrast to solids and liquids, gases have additive volumes. The mole-fraction-weighted average molecular weight is calculated by adding the molecular weights of each component. Of course, the mole fractions and the volume fractions are the same (E.V.E.N. principle.)
According to a scale where the atomic masses of hydrogen, carbon, nitrogen, and oxygen are 1, 12, 14, and 16, respectively, molecular weight is the total of all the atomic masses of the atoms that make up a molecule. For instance, water has a molecular weight of 18 (2 + 16), which is made up of two hydrogen atoms and one oxygen atom. likewise known as molecular mass.
We know,
MW of [tex]ZnO[/tex] = 81.41 g
MW of [tex]CO_2[/tex] = 44.01 g
So, amount of [tex]CO_2[/tex] will be produced,
[tex]\frac{135*44.01}{81.41} = 36.5 g[/tex]
To know more about molecular mass:
brainly.com/question/18446366
#SPJ4
A hydrated sample of sodium acetate is found to have a molar mass of 263. 183g. How many water molecules are associated with each sodium acetate?
Answers
A hydrated sample of sodium acetate is found to have a molar mass of 263. 183g. water molecules are associated with each sodium acetate 1000mL/L of sodium acetate make up the bulk.
sodium volume in mL, molar mass, and molarity = \s1000 \s500 \s \s ×0.375×82.0245=15.38. g.The number of moles per litre is the molarity of a solution. In 500 ml, you have 0.75 moles. As a result, you have 0.75 moles per liter, or 1.5 moles per liter, or one pound. A hydrated sample of sodium acetate is found to have a molar mass of 263. 183g. water molecules are associated with each sodium acetate 1000mL/L of sodium acetate make up the bulk.The mass percentage of water in a 20% solution with 100g of water is equal to 100 - 20%, or 80%. <br> 100 grams of the solution, or 80%, 100% of the answer is equal to "(100)/(80)" gram. 20% of the answer is equal to (100/(80) xx 20) = 25 grams. Therefore, 25 grams of sodium sulphate are required to make a 20% (w/w) solution in 100 g of water.
learn more about sodium here:
https://brainly.com/question/29327783
#SPJ4
A tank fires a round of ammunition at a speed of 500 m/s. The round travels 2,000 m. How long did it take it to travel that far?
Answers
Answer:
To find out how long it took for the round to travel 2,000 m, we can use the formula:
time = distance / speed
In this case, the distance is 2,000 m and the speed is 500 m/s. So we can plug in these values:
time = 2000 m / 500 m/s
time = 4 seconds
So the round took 4 seconds to travel 2,000m.
true or false rf values should be kept in the range of 0.2 to 0.8 for the most effective separation when more than one compound is present in the sample.
Answers
The Rf values should be kept in the range of the 0.2 to 0.8 for the most effective separation when the more than one compound is present in sample. This statement is True.
The Rf value is dependent on the polarity of the compound. Polar compounds will have the lower Rf values than the nonpolar compounds under the same conditions. The Rf value is defined as the ratio in between the distance the solute travelled and the distance the solvent travelled.
Thus, this statement is true that Rf values should be kept in the range of the 0.2 to 0.8 for the most effective separation when the more than one compound is present in sample.
To learn more about Rf value here
https://brainly.com/question/14689091
#SPJ4
which flask will have the greatest number of colli- sions per second with the walls of the container?
Answers
The flask will have the greatest number of collisions per second with the walls of the container is Flask A: CO at 760 torr and 0 °C.
The Collision of the molecules with the wall of the container will be depend on the pressure. Therefore, the flask with the highest pressure have the greatest no of the collisions. As flask A has the highest pressure of 760 torr, Therefore, the flask A has the greatest number of the collusions per second with the walls of the container.
Thus the flask A with CO gas will have the greatest number of collisions per second with the walls of the container.
This question is incomplete, the complete question is :
Consider three identical flasks filled with different gases.
Flask A: CO at 760 torr and 0 °C
Flask B: N₂ at 250 torr and 0 °C
Flask C: H₂ at 100 torr and 0 °C
which flask will have the greatest number of collisions per second with the walls of the container?
To learn more about gas here
https://brainly.com/question/23056914
#SPJ4
Correctly classify each of the following compounds as highly soluble or as either slightly soluble or insoluble in water. NaCl, KOH, CH3CH2OH, CH3COOH, CH3OH, Na2SO4, CH2Cl2, CH3(CH2)5OH, C6H6, C6H14, CCl4, CHCl3, KNO3
Answers
The Highly Soluble : NaCl, KOH, CH₃CH₂OH, CH₃COOH, CH₃OH, Na₂SO₄, KNO₃
The Insoluble: C₆H₆, C₆H₁₄, CCl₄, CHCl₃, CH₂Cl₂, CH₃(CH₂)₅OH
1) NaCl : NaCl is a chloride and NaCl is highly soluble.
2) CH₃C l: This compound is an organic. The electronegativity between C and Cl is high, and is polar. Because water is also polar, it is highly soluble.
3) CH₃OH: Alcohols are hydrocarbon are is highly soluble in water because of hydrogen bonding.
4) KOH: KOH is highly soluble. This is a strong an readily dissociates in water.
5) C₆H₆ : It is the benzene ring and is a nonpolar molecule, so it is expect this is insoluble with water.
6) C₆H₁₄ : It is hexane of long chain of hydrocarbons. There is no hydrogen bonding, this is nonpolar and insoluble in water.
7) KNO₃: It is highly soluble because all nitrates are soluble in the water.
8) CCl₄ : There is balance of the partial charges which makes it a nonpolar. It is insoluble in water.
9) Na₂SO₄: It is highly soluble.
10) CH₃CH₂OH: It is highly soluble in water.
11) CH₂Cl₂ : This is polar and due this it is highly soluble in water.
12) CH₃COOH : It is a carboxylic acid. It is highly soluble in water.
To learn more about soluble here
https://brainly.com/question/2484768
#SPJ4
Solid aluminum has a specific heat capacity of 0.90 J/g K How many joules of heat are absorbed to raise the temperature of 24.0 grams of aluminum from 300. K to 350. K?
Answers
The amount of heat absorbed to raise the temperature of 24.0 grams of aluminum from 300K to 350K is 1080J.
How to calculate heat?The amount of heat absorbed or released by a substance can be calculated as follows:
Q = mc∆T
Where;
Q = quantity of heat absorbed or releasedm = mass of substancec = specific heat capacity∆T = change in temperatureAccording to this question, a solid aluminum has a specific heat capacity of 0.90J/g K. The amount of heat absorbed or released by the substance is calculated as follows:
Q = 24.0 × 0.90 × {350 - 300}
Q = 24.0 × 0.90 × 50
Q = 1,080 Joules
Therefore, 1080J is the amount of heat absorbed by the aluminium sample.
Learn more about heat at: https://brainly.com/question/9588553
#SPJ1
chemist robert boyle created boyle’s law, the first law to describe what?
Answers
Robert Boyle created Boyle's Law, the first law to describe the inverse relationship between the pressure and volume of a gas at constant temperature.
Boyle's Law states that the pressure and volume of a gas are inversely proportional at a constant temperature. This means that as the volume of a gas increases, the pressure decreases and vice versa. Boyle's law is usually represented mathematically as PV=k, where P is the pressure of the gas, V is its volume, and k is a constant. Boyle's law was one of the first laws describing the behavior of gases and laid the foundation for the study of thermodynamics. It was a significant contribution to the field of chemistry and physics, and it is still widely used today in various applications such as in the design of gas storage tanks, scuba diving and many other fields.
To know more about Boyle's law click below:
https://brainly.com/question/1437490#
#SPJ4
2Cu+Cl2=2CuCl2
Write balanced half-reactions describing the oxidation and reduction that happen in this reaction
Answers
Answer:
c+cu
Explanation: