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Iteru [2.4K]
4 years ago
8

When two or more refrigerants are mixed, what must be done with the mixture?

Chemistry
1 answer:
Lana71 [14]4 years ago
5 0
<span>When refrigerants are mixed, somebody must recover the mixture into a separate </span><span>container or tank.
</span>Refrigerant<span> is a mixture,</span> that can transform from liquid to gas and vice versa. Refrigerants <span>used in a </span>heat pump and refrigerators. They <span>should not be mixed together, one of the reason is because they are flammable.</span>
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Find the volume occupied by 4.00 g of helium gas at <br> 25.0o C and 1.18 atm of pressure.
Triss [41]

Answer: 41.46 L

Explanation:

La ecuación que describe  relación entre presión, volumen,  temperatura y la cantidad (en moles)

de un gas ideal es:   PV = nRT

Donde:  P = Presión absoluta ,  V= Volumen  , n = Moles de gas , R = Constante universal de los gases ideales,  T = Temperatura absoluta,

R = 0.082 L. atm/mol. °K

V = nRT/P

Calculanting n

n = mass/ molecular mass

<h3>n = 4 g / 2g. mol⁻¹</h3><h3>n = 2 mol</h3><h3>T =25⁰ + 273 ⁰K = 298 ⁰K</h3><h3>V = (2 mol ₓ0.082 L. atm / mol.°K x 298 ⁰K) / 1.18 atm = 41.46 L</h3>
6 0
3 years ago
Some redwood trees reproduce both sexually and asexually.
valentinak56 [21]
B. It increases the genetic diversity. Sexual reproduction provides genetic diversity because the egg and sperm produced contain different combinations.
4 0
3 years ago
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Besides hydrogen and oxygen what is required to produce the chemical reaction that yields water
timurjin [86]
Hey there! Hello!

In order for water to be formed, or for any reaction to occur, there needs to be something that splits the current bonds of hydrogen and oxygen up. In this case, some sort of activation energy is required. 

Hydrogen and oxygen are not found as single molecules in nature. They're found as 2 molecules linked together, as H2 and O2. An activation energy, such as heat, or some sort of catalyst needs to be used in order to split the two molecules up and make them link with one another. 

What happens afterwards is a chemical reaction that involves the valence electrons of oxygen (which has 6 on the outermost shell) and hydrogen (which has two on the outermost shell). The oxygen wants to have an octet (8 valence electrons) total, so it shares with the hydrogen, which is already satisfied with it's two valence electrons (according to the nature of hydrogen). 

But because there has to be a total of four molecules involved, two molecules of water are going to be produced as a result. 

2H+2O=2H20

Hope this helped you out! Feel free to ask me any additional questions if you need further clarification. :-)
3 0
3 years ago
Given the equation: rate = k[H2O2]m[I-]n Which of the following statements is (are) true about the orders, m and n? A. m and n a
kramer

Answer:

A. m and n are independent from the molar coefficients of the reactants in the balanced chemical equation.

B. m and n must be determined by experiment.

Explanation:

rate = k[H2O2]^m × [I-]^n

The Order of Reaction refers to the power dependence of the rate on the concentration of each reactant.

Either the differential rate law or the integrated rate law can be used to determine the reaction order of reactants from experimental data.

6 0
4 years ago
Which words describe an air mass likely to be over the northern parts of the Pacific Ocean? wet and cold, warm and dry, cold and
liubo4ka [24]

Over the northern parts of the Pacific Ocean, the Maritime Polar air mass exists. This means that the air mass likely to be over the northern parts of the Pacific Ocean would be wet and cold.

6 0
4 years ago
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