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solniwko [45]
3 years ago
13

Two chemical reactions are shown:

Chemistry
1 answer:
galben [10]3 years ago
6 0

Answer: A

Explanation:

In both equations 2 things make one product

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consider this reaction at equilibrium at a total pressure: 2h2o(g) o2(g) 2h2o2(g) suppose the volume of this system is twice its
Daniel [21]

The total pressure when the new equilibrium is stabilized is half of the initial pressure of the system.

The given chemical reaction at a stable equilibrium is,

2H₂O(g)+O₂(g) = 2H₂O₂(g)

According to the ideal gas equation,

PV = nRT

P is pressure,

V is volume,

n is moles

R is gas constant,

T is temperature.

Assuming the temperature is constant.

If the volume of the system is twice the initial volume then the total pressure at the new equilibrium can be found out as,

P₁V₁ = P₂V₂

Where, P₁ and V₁ are initial volume and pressure while P₂ and V₂ are final pressure and volume.

If V₂ = 2V₁,

P₂ = P₁/2

So, the final total pressure will be half of the initial pressure.

To know more about equilibrium, visit,

brainly.com/question/517289

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5 0
10 months ago
A 5.5 g sample of a substance contains only carbon and oxygen. Carbon makes up 35% of the mass of the substance. The rest is mad
Umnica [9.8K]

We have been given the condition that carbon makes up 35% of the mass of the substance and the rest is made up of oxygen. With this, it can be concluded that 65% of the substance is made up of oxygen. If we let x be the mass of oxygen in the substance, the operation that would best represent the scenario is,

<span>                                       x = (0.65)(5.5 g)</span>

<span>                                       <em> </em><span><em>x = 3.575 g</em></span></span>

8 0
3 years ago
A chemical reaction takes place in which energy is absorbed arrange the characteristics of the reaction in order from start to f
Nostrana [21]
<span>A chemical reaction in which energy is absorbed is known as an endothermic reaction. The characteristics of the reaction in order from start to finish is as follows:

1. Lower energy of reactants
2. Transition state
3. Higher energy of products

This implies that in an endothermic reaction, </span><span>the products are less stable than the reactants.</span>
5 0
3 years ago
What happens when the student use a straw to blow a stream of air between the papers?
klasskru [66]

Actualy the answer is Lower pressure causes the papers to come closer together.

Please mark brainiest if this is correct and helpful.

3 0
3 years ago
3. How does the wave change if the volume increases?<br>​
Finger [1]

Answer:

When you increase the volume of the tone, you are adding energy to the sound wave, resulting in larger vibrations

Explanation:

8 0
3 years ago
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