Answer:
477 °C
Explanation:
Step 1: Given data
Initial pressure (P₁): 1.0 atmInitial temperature (T₁): 27 °CFinal pressure (P₂): 2.5 atmStep 2: Convert 27 °C to Kelvin
We will use the following expression.
K = °C + 273.15 = 27 + 273.15 = 300 K
Step 3: Calculate the final temperature (T₂)
If we assume constant volume (before the can explodes) and ideal behavior, we can calculate the final temperature using Gay-Lussac's law.
T₁/P₁ = T₂/P₂
T₂ = T₁ × P₂/P₁
T₂ = 300 K × 2.5 atm/1.0 atm = 750 K
In Celsius,
°C = K - 273.15 = 750 - 273.15 = 477 °C
What are alleles? Are theys ame or different
Answer:
Kind of like DNA or a part of DNA
Explanation:
They are what make you a person, no they aren't the same
When KCl(s) is dissolved in water, the resulting solution is classified as a
O heterogeneous compound
O homogeneous compound
O heterogeneous mixture
O homogeneous mixture
Answer:
O homogeneous mixture
Explanation:
When Kci is dissolved in water it becomes a solute in O homogeneous mixture
Bella observes that the gas-filled tire of her bicycle becomes a little deflated when
she keeps the bicycle outside in cold weather. Which of the following laws is used to
understand the behavior of the gas and why? (5 points)
The low temperature outside lowers the volume of the gas according to
1)
Charles's law because this law describes how a gas will behave at constant
pressure.
2)
The low temperature outside increases the volume of the gas according to
Charles's law because this law describes how a gas will behave at constant
pressure.
3)
The low temperature outside lowers the volume of the gas according to
Boyle's law because this law describes how a gas will behave when the
number of moles remains constant.
The low temperature outside increases the volume of the gas according to
4)
Boyle's law because this law describes how a gas will behave when the
number of moles remains constant.
Answer:
Answer is A - The low temperature outside lowers the volume of the gas according to Charles's law because this law describes how a gas will behave at constant pressure.
Explanation:
The low temperature outside lowers the volume of the gas according to Charles's law because this law describes how a gas will behave at constant pressure.
What is Charles law?Charles states that, the volume of aa given mass of gas is directly proportional to its temperature at constant pressure.
Hence, to understand this behavior of the gas, we must understand that the low temperature outside lowers the volume of the gas according to Charles's law because this law describes how a gas will behave at constant pressure.
Learn more about Charles's law:https://brainly.com/question/16927784
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How many H2O molecules are in 183.2 grams of H20 gas?
Answer: There are [tex]61.24 \times 10^{23}[/tex] molecules present in 183.2 grams of [tex]H_{2}O[/tex] gas.
Explanation:
Given: Mass = 183.2 g
Number of moles is the mass of substance divided by its molar mass.
As molar mass of water is 18 g/mol. Therefore, moles of [tex]H_{2}O[/tex] are calculated as follows.
[tex]Moles = \frac{mass}{molar mass}\\= \frac{183.2 g}{18 g/mol}\\= 10.17 mol[/tex]
According to the mole concept, there are [tex]6.022 \times 10^{22}[/tex] molecules present in one mole of a substance.
Hence, molecules present in 10.17 moles are calculated as follows.
[tex]10.17 mol \times 6.022 \times 10^{23}\\= 61.24 \times 10^{23}[/tex]
Thus, we can conclude that there are [tex]61.24 \times 10^{23}[/tex] molecules present in 183.2 grams of [tex]H_{2}O[/tex] gas.
HELP ASAP CHEM!!!! Please
Answer:
The solubility of gases decreases with pressure as that of solids and liquids is not affected.
Magnesium metal reacts with hydrochloric acid to produce hydrogen gas and a solution of magnesium chloride. Write and balance the chemical equation for this reaction, and determine the volume of the hydrogen gas generated (at 1.00 atm, 25 °C) by reacting 10.0 g Mg with an excess of hydrochloric acid
Answer:
Mg + 2 HCl ⇒ MgCl₂ + H₂
10.1 L
Explanation:
Step 1: Write the balanced equation
Mg + 2 HCl ⇒ MgCl₂ + H₂
Step 2: Calculate the moles corresponding to 10.0 g of Mg
The molar mass of Mg is 24.31 g/mol.
10.0 g × 1 mol/24.31 g = 0.411 mol
Step 3: Calculate the moles of H₂ produced from 0.411 moles of Mg
The molar ratio of Mg to H₂ is 1:1. The moles of H₂ produced are 1/1 × 0.411 mol = 0.411 mol
Step 4: Calculate the volume occupied by 0.411 moles of H₂
0.411 moles of H₂ are at 1.00 atm and 25 °C (298 K). We can calculate the volume occupied using the ideal gas equation.
P × V = n × R × T
V = n × R × T / P
V = 0.411 mol × (0.0821 atm.L/mol.K) × 298 K / 1.00 atm = 10.1 L
Which of the following are properties of mechanical waves? (pick more than 1)
A. Waves require a medium or material, to move through
B. Energy is transferred with the motion of the wave.
C. Waves begin at a source with a disturbance.
D. Particles of a medium always move perpendicular to the wave motion.
Answer:
I'd say ALL OF THE ABOVE.
A Mechanical wave is a disturbance that transfers energy as it moves through a medium without displacement of the medium itself.
It can Either be Transversal or Longitudinal.
It is Transversal when the particles of the medium move perpendicular to the wave motion.
It requires a medium and begin at a source with a disturbance
So
ALL THE OPTIONS SEEM LEGIT.
Bottle A is filled with air, and Bottle B is filled with carbon dioxide of equal temperatures. Each bottle is placed 50 cm from a heat source, and the temperature inside each bottle is recorded every 5 minutes. Which statement describes the results of the experiment after an hour?
a. The temperatures in the bottles increased equally.
b. Bottle B has a higher temperature than Bottle A.
c. Bottle A has a higher temperature than Bottle B.
d. The temperature of neither bottle increased.
Answer:
Bottle B has a higher temperature than Bottle A.
Explanation:
We have to consider something very important here and that is the ability of the molecules of CO2 and those of air to trap heat.
CO2 molecules are better able to trap heat since it is among the green house gases.
Since CO2 is a greenhouse gas, the temperature of bottle B is higher than that of bottle A because more heat is trapped by the gas in bottle B than the gas in bottle A.
A sample of NH3 contains 10.0 grams of nitrogen and 25.00 grams of oxygen. Find its percent composition.
N= 0=
Answer:
[tex]\%N=28.6\%\\\\\%O=71.4\%[/tex]
Explanation:
Hello there!
In this case, according to the given information, it is possible to calculate the percent compositions, by dividing the mass of each element by the sum of the masses of the elements as shown below:
[tex]\%N=\frac{m_N}{m_N+m_O} *100\%\\\\\%O=\frac{m_O}{m_N+m_O}*100\%[/tex]
Thus, we plug in the given masses to obtain:
[tex]\%N=\frac{10.0g}{10.0g+25.00g} *100\%=28.6\%\\\\\%O=\frac{25.00g}{10.0g+25.00g}*100\% =71.4\%[/tex]
Regards!
How many grams of sodium chloride are in 100 mL of 1.25 M sodium chloride?
Answer:
7.3125grams
Explanation:
Molarity is the measure of the molar concentration of a solution. It can be calculated using the formula as follows:
Molarity = number of moles (n) ÷ volume (V)
Based on the information given,
Molarity = 1.25 M
Volume = 100 mL = 100/1000 = 0.1 L
Molarity = n/V
1.25 = n/0.1
n = 1.25 × 0.1
n = 0.125mol
Using the below formula to calculate the mass of NaCl;
mole = mass/molar mass
Molar mass of NaCl = 23 + 35.5 = 58.5g/mol
0.125 = mass/58.5
mass = 0.125 × 58.5
mass = 7.3125 grams
There is a ______that shoots out hot water every day.
Geyser
Volcano
Hot spring
Fumarole
Tectonic
Answer:
geyser shoots out hot water everyday
differentiate between homogenous matter and heterogeneous matter?
Answer:
Homogeneous mixture:
These are called solutions.It has a uniform composition.It has only one phase.It cannot be separated physically.The particles appear smaller in size.These are pure substances.These are not visible easily visible to the naked eye and also through a microscope.Examples include milk, gasoline, sugar solution, corn oil, fog, etc.Heterogeneous mixture:
These are called suspensions/colloids.It has a non-uniform composition.There are two or more phases.It can be separated physically.The particles are either smaller or larger in size.These are not pure substances.These are easily visible to the naked eye and also through a microscopeExamples are- a mixture of mud & water, beach sand, vinegar, air cloud, etc.The main criterion for sigma bond formation is that the two bonded atoms have valence orbitals with lobes that point directly at each other along the line between the two nuclei.
a. True
b. False
Answer:
The given statement - The main criterion for sigma bond formation is that the two bonded atoms have valence orbitals with lobes that point directly at each other along the line between the two nuclei , is True.
Explanation:
The above statement is correct , because the sigma bond is produced by the head on overlapping, the orbitals should all point in the same direction.
SIGMA BONDS - Sigma bonds (bonds) are the strongest type of covalent chemical bond in chemistry. They're made up of atomic orbitals that collide head-on. For diatomic molecules, sigma bonding is best characterized using the language and tools of symmetry groups.
Head-on overlapping of atomic orbitals produces sigma bonds. The concept of sigma bonding is expanded to include bonding interactions where a single lobe of one orbital overlaps with a single lobe of another. Propane, for example, is made up of ten sigma bonds, one for each of the two CC bonds and one for each of the eight CH bonds.
Hence , the answer is true .
1. What is the composition
of Ca(No2)2
Answer:
1 Calcium, 2 Nitrogen, and 4 oxygen
Explanation:
there is no number before of after Ca(calcium), so there is only 1. No(nitrogen) has no number next to it so there would be only 1 of it,but there is a 2 after the parenthesis so there is 2 nitrogen (2*1=2). O(oxygen) has a two next to it so there would be only 2 oxygen, but there is a two after the parenthesis so instead there are 4 oxygen because 2*2=4. Hope this helped you <3
Imagine that all microorganism suddenly disappeared from earth from what u have learned why do u think that animals would eventually disappeared from earth? Why would plant disappeared
Answer:
bugging milftoon comic milftoon comic milftoon cimicd how many to summon a transgender milftoon cimicd how
what is carboxylic acid
Carboxylic acids.
Answer:
Carboxylic acid is an organic acid containing a carboxyl group. The simplest examples are methanoic (or formic) acid and ethanoic (or acetic) acid. It is used in the production of polymers, biopolymers, coatings, adhesives, and pharmaceutical drugs. They also can be used as solvents, food additives, antimicrobials, and flavorings.
Explanation:
Hope that helps.
Balance the equation.
Fe + Cl2 → FeCl3
A. Fe + 3Cl2 + 2FeCl3
B. Fe + 3Cl2 → FeCl3
C. 2Fe + 3Cl2 + 2FeCl3
Answer:
C. 2Fe + 3Cl2 + 2FeCl3
Explanation:
Hello there!
In this case, according to the given chemical reaction:
Fe + Cl2 → FeCl3
It turns out possible to balance it via cross-multiplying the chlorine atoms as they do not result from a whole number multiplication; it means we get:
Fe + 3Cl2 → 2FeCl3
And we just balance Fe by placing a 2 on Fe:
2Fe + 3Cl2 → 2FeCl3
Thus, the answer is C. 2Fe + 3Cl2 + 2FeCl3
Regards!
What is said to have occurred when an object experiences a frequency equal to its natural frequency?
frequency
diffraction
resonance
amplitude
Answer: Resonance
Explanation:
A resonance is said to occur when an object experiences a frequency that is equal to its natural frequency.
A resonance refers to the sound that's produced by an object when the object vibrates at an identical rate as the sound waves that is coming from another object.
Therefore, the correct option is C
can anyone help with this mole to mole/mole to grams question? any help would be greatly appreciated! Thanks!
Answer:
Explanation:
a) 3.00 mol Cu x 2 mol Ag/ 1 mol Cu = 6 mol Ag
b) 3.00 mol Cu x 2 mol Ag/1 mol Cu x 107.87g Ag/ 1 mol Ag = 647.22g Ag
c) 3.00 mol Cu x 1 mol Cu(NO3)2/ 1 mol Cu = 3 mol Cu(NO3)2
d) 3.00 mol Cu x 1 mol Cu(NO3)2/ 1 mol Cu x 187.54g/ 1 mol Cu(NO3)2 =562.644g Cu(NO3)2
The products of a combustion reaction always include oxygen gas and water vapor.
True
Or
False
Answer:
true
Explanation:
A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve O2 as one reactant. The combustion of hydrogen gas produces water vapor. ... The products of the combustion of hydrocarbons are carbon dioxide and water.
How many moles are in 67.94 liters of O2?
I need this answered asap
Answer:
3.033
Explanation:
67.94/22.4= 3.033
I hope lol
When elements chemically combine with each other, what do they Form? A. electrons, B. compounds, C. atoms
Answer:
B
Explanation:
When two distinct elements are chemically combined—i.e., chemical bonds form between their atoms—the result is called a chemical compound. Most elements on Earth bond with other elements to form chemical compounds, such as sodium (Na) and Chloride (Cl), which combine to form table salt (NaCl).
MARK AS BRAINLEST!!
For each of the salts below, match the salts that can be compared directly, using Ksp values, to estimate solubilities.
a. Mg(OH)2
b. CaSO3
c. BaCrO4
d. CaS
1. copper (II) sulfide
2. zinc hydroxide
Answer:
1 - Salts required that can be compared directly, using Ksp values, to estimate solubilities for copper (II) sulfide are - [tex]CaSO_3[/tex] (Option b) ,[tex]BaCrO_4[/tex] (Option c) and [tex]CaS[/tex] (Option d)
2 - Salts that can be compared directly, using Ksp values, to estimate solubilities for zinc hydroxide are - [tex]Mg(OH)_2[/tex] (Option a)
Explanation:
[tex]K_s_p[/tex] values can be used to compare the solubility of salts that produce ions in a 1:1 ratio.
[tex]CuS[/tex] {copper (II)sulfide} dissociates with ions in ratio 1:1 .Because the salts [tex]CaSO_3[/tex] , [tex]BaCrO_4[/tex] and [tex]CaS[/tex] have a 1:1 ion ratio, the solubilities of options b, c, and d can be compared to salt 1.
[tex]K_s_p[/tex] Values can be used to compare the solubility of salts that produce ions in a 1:2 or 2:1 ratio.
2. [tex]Zn(OH)_2[/tex] dissociates into ions in ratio 1:2 .
Because the ions in the salt [tex]Mg(OH)_2[/tex] are in a 1:2 ratio, the solubility of salt 2 can be compared to that of salt 'a'.
Hence , Salt 1 is matched with options b , c , d.
Salt 2 is matched with option a.
The forces between ________ are examples of electric forces.
A.
charged particles
B.
neutrons
C.
masses
D.
photons
Answer:
The answer would be charged particles.
Explanation:
Electric force exists as one of the most fundamental forces in the universe, it occurs between all charged particles.
A perfect cube of aluminium metal was found to weigh 20.00g ,the density of the aluminium is 2.70g/ml ,what are the dimensions of the cube
Answer:
1.95cm x 1.95cm x 1.95cm
Explanation:
20.00g / 2.70g/mL = 7.41 mL = 7.41 cm^3
∛7.41 = 1.95cm
A solution with a ph of 5 has how many more hydrogen ions in it than a solution with a ph of 7?
Which of the following would be a correct conversion factor
relating carbon dioxide (CO2) and glucose (C6H1206) using the
balanced equation below?
6CO2 + 6H20C6H12O6 + 602
Answer:6CO2/1C6H12O6
Explanation:
Propane burns in air to form water vapor and another gas. What is the volume of the water vapor at 500°C and 1 atm?
Answer:
253.85 L
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
C₃H₈ + 5O₂ —> 3CO₂ + 4H₂O
From the balanced equation above, 4 moles of water vapor were produced.
Finally, we shall determine the volume of the water vapor produced as follow:
Mole water vapor (n) = 4 moles
Pressure (P) = 1 atm
Temperature (T) = 500 °C = 500 °C + 273 = 773 K
Gas constant (R) = 0.821 atm.L/Kmol
Volume (V) =?
PV = nRT
1 × V = 4 ×0.0821 × 773
V = 253.85 L
Thus, the volume of water vapor obtained is 253.85 L
How many atoms of copper (Cu) are in 4 moles of copper?
Answer:
i moles of copper has 6.022 multiplied by 10raseto 23
Explanation:
Label the states of each compound in the reaction below.
CuSO4( ) + 2KOHC ) + Cu(OH)2( ) + K2SO4( )
Answer:
CuSO₄(aq) + 2KOH (aq) —> Cu(OH)₂(s) + K₂SO₄(aq)
Explanation:
CuSO₄ + 2KOH —> Cu(OH)₂ + K₂SO₄
To know the state of each compounds, we shall determine the complete ionic equation. This can be obtained as follow:
In solution, CuSO₄ and KOH will dissociate as follow:
CuSO₄(aq) —> Cu²⁺(aq) + SO₄²¯(aq)
KOH (aq) —> K⁺ (aq) + OH¯(aq)
CuSO₄(aq) + KOH (aq) —>
Cu²⁺(aq) + SO₄²¯(aq) + 2K⁺(aq) + 2OH¯(aq) —> Cu(OH)₂(s) + 2K⁺(aq) + SO₄²¯(aq)
Note: Cu(OH)₂ is insoluble in water.
Therefore, the elemental equation is:
CuSO₄(aq) + 2KOH (aq) —> Cu(OH)₂(s) + K₂SO₄(aq)