Answer:
combination, decomposition, displacement, combustion, and disproportionation
La termodinámica es una ciencia que ayuda a comprender diferentes funciones y efectos que suceden a nuestro alrededor, entre estos, se encuentra la posibilidad de
Answer:
La pregunta no es clara, asi que voy a dar una breve descripicion de la termodinamica y alguno de los fenomenos que estudia
La termodinámica es la rama de la física que estudia los sistemas en equilibrio termodinámico (es decir, aquellos sistemas que no pueden sufrir un cambio espontáneo). Particularmente, la termodinámica estudia los procesos de flujo de calor (lo podemos ver en su nombre, dinámica del calor) y se relacionan estos cambios de energía con el trabajo que es posible obtener.
Entonces, por ejemplo, la termodinámica estudia como el hielo puede cambiar de fase (a medida que aumenta su temperatura) y convertirse en agua líquida.
La termodinámica también estudia como funcionan máquinas de calor, como motores de pistones, y el trabajo que estos son capaces de realizar.
Como ejemplo final, con la termodinámica podemos estudiar cosas tan complejas como equilibrio entre distintas fases (por ejemplo, el porqué podemos tener agua y hielo en equilibrio termodinámico, un ejemplo de esto son las superficies de ríos que se congelan mientras la parte inferior sigue siendo líquida)
Esos son, entre muchísimos otros, 3 posibles efectos que suceden a nuestro alrededor, y son estudiados por la termodinámica.
Which of the following would eat a dead rabbit?
A)
carnivore
B)
scavenger
C)
herbivore
D)
omnivore
Answer:
Scavenger
Explanation:
Because scavengers feed on dead of decaying meat
I need the answer fast plzzz!! NO LINKS
Answer:
your answer is 12 hope it's correct answer
If 12.3 g of Cu is deposited at the cathode of an electrolytic cell after 5.50 h, what was the current used?
Answer:
Current used = 1.90 A
Explanation:
The Faraday's first law of electrolysis states:
M = ZIt
where: M is the mass of the element deposited, Z is the electrochemical equivalence of the element, I is the amount of current required and t is the time taken.
From the given question, M = 12.3 g, t = 5.5 h (19800 s) and Z = 0.0003296 g/C.
So that,
12.3 = 0.0003296 x I x 19800
12.3 = 6.52608 I
I = [tex]\frac{12.3}{6.52608}[/tex]
= 1.88475
I = 1.90 A
The value of the current used used is 1.90 A
Please tell me the answers
which one is mixture or solution
I will mark him or her as well done brilliant and thank you
Answer: Milk and chocolate/ oil and water are solution whereas fruit salad and air are mixtures
What is another term for a Static Load?
Answer: static charge
Explanation:
Answer:
Explanation:
static load, also called the holding load, is the force that will be applied to the linear actuator when it is not in motion.
an atom has 19 protons and 20 neutrons. what is the atomic number with steps
Answer:
39
Explanation:
add em up
Why do nurses need to understand chemistry?
A. Chemistry helps them understand how germs transmit disease.
B. Chemistry helps them keep accurate health records.
C. Chemistry helps them understand how medicines work.
D. Chemistry helps them learn the parts of the body.
Option D. Chemistry helps them learn the parts of the body is the reason need to understand chemistry.
Why do nurses need to understand chemistry?
Chemistry exists as the branch of science that contracts with the properties, composition, and arrangement of elements and compounds, how they can vary, and the energy that exists released or absorbed when they change.
Nurses must utilize organic chemistry to determine how the bodies of their patients metabolized glucose, and how the body responds to it. On a more complex level, nurses must cause conclusions based on their knowledge of organic chemistry to help protect the lives of their patients.
Hence, Option D. Chemistry helps them learn the parts of the body is the reason need to understand chemistry.
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answer 3 & 4
Which of the following answer describes 2-hexene? *
O structure should have 5 carbon with double bond beginning on the 2nd carbon atom
O structure should have 6 carbon with triple bond beginning on the 2nd carbon atom
O structure should have 6 carbon with double bond beginning on the 2nd carbon atom
O structure should have 5 carbon with triple bond beginning on the 2nd carbon atom
Answer:
The answer for 2-hexene is that the structure should have 6 carbon with a double bond beginning on the 2nd carbon atom.
The answer for 1-pentyne is that the structure should have 5 carbon with triple bond beginning on the 1st carbon atom.
Explanation:
2-Hexene
The structural formula for 2-hexene will have 6 carbons because the nomenclature has a -hex prefix, which stands for 6 carbons.
The -ene suffix of the nomenclature means that the organic compound is an alkene. Alkenes are hydrocarbons that contain double covalent bond and have the suffix -ene.
The double bond is on the 2 carbon atom because the nomenclature states that the double bond will be on the 2 carbon atom.
1-Pentyne
The structure will have 5 carbons since the -pent prefix means 5 carbons.
The structure has a triple bond because the -yne suffix means that the structure is an alkyne. An alkyne is a hydrocarbon with triple covalent bonds.
Also, the position of the triple bond is known because the nomenclature of the alkyne states that the triple bond is on the 1st carbon.
The force of gravity pulling down on the
barbell is 756 newtons (N) How many
newtons of force are exerted by the
weightlifter to hold the barbell up?
Answer:
Explanation:
The same. The force down (the weight of the barbells) is counter balanced by the weight up ( a person holding the barbells). A little later on, you are going to draw force diagrams showing that these two forces are drawn acting in opposite directions.
You can satisfy yourself by drawing a box and putting 1 arrow pointing up on the bottom and labeling it 756 up and another arrow on the top of the box pointing down and labeling it 756. They balance.
2NO(g) + 5H2(g) ⟶ 2NH3(g) + 2H2O(g)If 45.4 grams of NO and 12.1 grams of H2 react, what is the largest amount of ammonia that can be formed? The final answer should be reported to one place after the decimal point
Answer:
25.8g of NH3 can be formed
Explanation:
To solve this question we must convert the mass of each reactant to moles using molar mass. With the chemical equation we can find limiting reactant. The moles of limiting reactant are used yo find the moles of ammonia produced and its mass:
Moles NO -30.01g/mol-
45.4g * (1mol / 30.01g) = 1.51 moles
Moles H2 -Molar mass: 2.01g/mol-
12.1g * (1mol / 2.01g) = 6.02 moles
For a complete reaction of 6.02 moles of H2 are needed:
6.02mol H2 * (2mol NO / 5mol H2) = 2.41 moles NO are needed
As there are just 1.51 moles, NO is limiting reactant
Moles NH3:
1.51 moles NO * (2mol NH3 / 2mol NO) = 1.51 moles NH3
Mass NH3 -Molar mass: 17.031g/mol-
1.51 moles NH3 * (17.031g / mol) =
25.8g of NH3 can be formedWhen choosing a respirator for your job, you must conduct a _____ test.
A) Weight
B) Breathing
C) Fit
D) Practice
What is the molecule shown below?
A. 2,3-methylpentane
B. 3-propylbutane
C. Heptane
D. 2-butylpropane
Answer:
2,3–dimethylpentane
Explanation:
To know which option is correct, we shall determine the name of the compound.
To obtain the name of the compound, do the following:
1. Determine the longest continuous carbon chain. This gives the parent name of the compound.
2. Identify the substituent group attached to the compound.
3. Locate the position of the substituent group by giving it the lowest possible count.
4. Combine the above to obtain the name of the compound.
Now, we shall determine the name of the compound as follow:
1. The longest continuous carbon chain is 5. Thus, the parent name of the compound is pentane.
2. The substituent group attached is methyl (–CH₃)
3. There are two methyl group attached to the compound. One is located at carbon 2 and the other at carbon 3.
4. Therefore, the name of the compound is:
2,3–dimethylpentane
None of the options are correct.
What is solar cycle?
The solar cycle is an about an 11-year cycle experienced by the Sun. During the solar cycle, the Sun's behavior builds to a maximum, becoming more stormy, and its magnetic field reverses. Then, the Sun settles back down to a minimum before another cycle begins.
Hit the heart if that was what you were looking for.
Which of the following would have the best thermal insulation properties?
A. A cotton sweater
B. A rubber rain_at
C. A down-filled coat
D. A nylon windbreaker
Answer:
C. A down-filled coat via a p e x
Thermal insulation maintains the temperature inside the system and inhibits heat transfer. A down-filled coat would have the best thermal insulation properties. Thus, option C is correct.
What is thermal insulation?Thermal insulation is the property of the substance to resist the heat and energy transfer from a substance of abundance to a lesser concentration. They lack the conducting particles.
It inhibits the heat to get transferred to other substances. The minimum heat transfer is achieved by the structural formation and the choice of the substance.
A down-filled coat is made of insulation material that keeps warm during the winters as its structure can trap and retain heat making the person warm during colds.
Therefore, option C. A down-filled coat best shows thermal insulation.
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Energy cycles through ecosystems because it returns to the Sun.
True
or
False
Answer:
FALSE
Explanation:
Energy does not cycle the way nutrients and atoms do. Energy enters the ecosystem from the Sun and exits after the organisms have taken as much as they need. Organisms release energy back into the biosphere as heat. ... It is usually in the form of heat, not the electromagnetic radiation from the Sun.
In the diagram below, what will allow more solute to be dissolved in the
solvent?
Answer:
missin a diagram buddy
Explanation:
If 50 milliliters of a 1.0M NaOH solution is
needed to exactly neutralize 10 milliliters of an
HCI solution, the molarity of the HCl solution is
A. 1.0M
B. 0.20 M
C. 5.0M
D. 10M
Answer:
c
Explanation:
The molarity of the HCl solution is 5M and the correct option is option C.
What is Molarity?Molarity is a unit of concentration measuring the number of moles of a solute per litre of solution.
Chemists primarily need the concentration of solutions to be expressed in a way that accounts for the number of particles that react according to a particular chemical equation. Since percentage measurements are based on either mass or volume, they are generally not useful for chemical reactions. A concentration unit based on moles is preferable.
Given,
Volume of NaOH = 50 ml
Concentration of NaOH = 1M
Volume of HCl = 10ml
Concentration of NaOH × Volume of NaOH = Concentration of HCl × Volume of HCl
1 × 50 = c × 10
Concentration of HCl = 5 M.
Therefore, the molarity of the HCl solution is 5M and the correct option is option C.
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Sulfur trioxide, ammonia gas, and water will react to form ammonium sulfate. Determine the
percent yield when 3.78 g of ammonium sulfate forms from the reaction of 2.51 g of sulfur
trioxide, 1.55 g of ammonia, and 0.804 g of water.
Answer:
Explanation:
Sulfur trioxide, ammonia gas, and water will react to form ammonium sulfate. Determine the percent yield when 3.78 g of ammonium sulfate forms from the reaction of 2.51 g of sulfur trioxide, 1.55 g of ammonia, and 0.804 g of water. Can you please show step by step on how you got the answer thanks!
-
First, the balanced equation:
1 SO3 + 2 NH3 + 1 H2O --> 1 (NH4)2SO4
Find the limiting reactant using molar masses and mole ratios
2.51 g SO3 (1 mol SO3 / 80.06 g SO3) (1 mol (NH4)2SO4 / 1 mol SO3) = 0.03135 mol (NH4)2SO4
1.55 g NH3 (1 mol NH3 / 17.04 g NH3) (1 mol (NH4)2SO4 / 2 mol NH3) = 0.04548 mol (NH4)2SO4
0.804 g H2O (1 mol H2O / 18.02 g H2O) (1 mol (NH4)2SO4 / 1 mol H2O) = 0.04462 mol (NH4)2SO4
Therefore, the limiting reactant is sulfur trioxide.
Now find the theoretical yield of (NH4)2SO4.
2.51 g SO3 (1 mol SO3 / 80.06 g SO3) (1 mol (NH4)2SO4 / 1 mol SO3) (132.16 g (NH4)2SO3 / 1 mol (NH4)2SO4) = 4.14 g (NH4)2SO4
Actual yield / Theoretical yield x 100% = Percent yield.
Therefore, percent yield = 91.3%
hoppe it helps
Sulfur trioxide, ammonia gas, and water will react to form ammonium sulfate. Hence,the percent yield is 91.3%.
What is percent yield ?
The percentage yield displays the amount of product produced in relation to the maximum mass. The proportion of atoms in the reactants that go on to produce the intended product is determined by the reaction's atom economy.
The balanced chemical equation is as follows:
1 SO3 + 2 NH3 + 1 H2O ⇒ 1 (NH4)2SO4
Find the limiting reactant by using molar masses and mole ratios as follows:
2.51 g SO3 (1 mol SO3 / 80.06 g SO3) (1 mol (NH4)2SO4 / 1 mol SO3)
= 0.03135 mol (NH4)2SO4
1.55 g NH3 (1 mol NH3 / 17.04 g NH3) (1 mol (NH4)2SO4 / 2 mol NH3)
= 0.04548 mol (NH4)2SO4
0.804 g H2O (1 mol H2O / 18.02 g H2O) (1 mol (NH4)2SO4 / 1 mol H2O)
= 0.04462 mol (NH4)2SO4
Hence, the limiting reactant is sulfur trioxide.
Then, find the theoretical yield of (NH4)2SO4.
2.51 g SO3 (1 mol SO3 / 80.06 g SO3) (1 mol (NH4)2SO4 / 1 mol SO3) (132.16 g (NH4)2SO3 / 1 mol (NH4)2SO4)
= 4.14 g (NH4)2SO4
Actual yield / Theoretical yield x 100% = Percent yield.
percent yield = 91.3%
Thus, the percent yield is 91.3%.
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the number of moles of hydrogen that are needed to produce .253 moles of water
Answer:
454
Explanation:
j
!
Hormones keep our bodies in a state of
balance known as
(a)metabolism
(b)homeostasis
Drag the tiles to the boxes to form correct pairs.
Match each chemical reaction with the type of reaction that best describes it.
Answer:
The way I just figured it out myself and made another acc to put the answer on :/
Explanation:
what is one possible molecular structure of polypropylene?
Explanation:
hope it helps thanks❤
brainliest pls
A chemical reaction done at STP conditions is supposed to produce 0.011 moles of CO2 gas. How many liters of gas will that be?
Answer:
V = 0.24 L.
Explanation:
Hello there!
In this case, it is possible to approach this problem by using the ideal gas equation defined by:
[tex]PV=nRT[/tex]
Whereas our unknown is V, volume, and we solve for it as follows:
[tex]V=\frac{nRT}{P}[/tex]
Then since the STP conditions are ate 273.15 K and 1 atm, the volume of 0.011 moles of CO2 gas turns out to be:
[tex]V=\frac{0.011mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1atm}\\\\V=0.24L[/tex]
Regards!
BALANCEAR ECUACIONE
H2SO4 + Ba(OH)2 = BASO4 + H2O
Answer:
H2SO4 + Ba(OH)2 = BaSO4 + 2H2o
Explanation:
ionic compounds have __ boiling points and molecular compounds have __ boiling points
a: high,low
b: low,low
c: low,high
d: high,high
Answer:
A
Explanation:
because ionic bond have stronger electrostatic force of attraction between oppositely charged particles so it has higher boiling point than molecular which is covalent bond and have low boiling point hope this helps to understand ^_^
What is altered by a catalyst?
a) average kinetic energy of products
b) activation energy
c) difference between the energies of products and reactants
d) average kinetic energy of reactants
Answer:Effect of Catalysts on the Activation Energy. Catalysts provide a new reaction pathway in which a lower Activation energy is offered. A catalyst increases the rate of a reaction by lowering the activation energy so that more reactant molecules collide with enough energy to surmount the smaller energy barrier.
Explanation:
Your answer is in this
In a chemical equation which shows presence of catalyst, activation energy is altered.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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Name the functional group in the following molecule:
Answer:
carboxyl group you said "functional group" not homologous series!
Answer:
Option "B":"Carboxyl group"
Explanation:
A stable atom that has a large nucleus most likely contains?
O more neutrons than protons.
more protons than neutrons.
O equal numbers of protons and neutrons.
C changing numbers of protons and neutrons.
Answer:
equal numbers of protons and neutrons
What is the charge for the polyatomic ions listed?
ammonium and acetate
Answer:
-1
Explanation:
Many of the common polyatomicions have an electrical charge of.