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Bumek [7]
3 years ago
15

NEED THIS NOW!! !

Chemistry
2 answers:
ivolga24 [154]3 years ago
8 0

Atoms cannot be created or detroyed, only rearranged.

saw5 [17]3 years ago
8 0
Your answer would be D
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Which of the changes gas to solid gas to liquid, liquid to solid liquid to gas,solid to liquid solid to gas will involve an outp
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Liquid to solid liquid to gas

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Boiling a liquid result in a gas

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An irreversible change would be?
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A. Chipping ice to flakes

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You can't reverse the ice becoming flakes. They will stay like that until they melt

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Tectonic plates make up which of the following layers of the Earth?
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The lithosphere makes up the layer of the earth.
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4 years ago
A mixture of 5L of H2 and 3L O2 reacts to form H2O (g) at constant T and P .Find the
slamgirl [31]

The  volume of H₂O = 5 L

<h3>Further explanation</h3>

Given

5L of H₂ and 3L O₂

Reaction

2H₂ (g) + O₂(g)  ⇒2H₂O(g)

Required

The  volume of H₂O

Solution

Avogadro's hypothesis:  

<em>In the same T,P and V, the gas contains the same number of molecules  </em>

So the ratio of gas volume will be equal to the ratio of gas moles  

mol H₂ = 5, mol O₂ = 3

  • Find limiting reactants

From equation, mol ratio H₂ : O₂ = 2 : 1, so :

\tt H_2\div O_2=\dfrac{mol~H_2}{coefficient}\div \dfrac{mol~O_2}{coefficient}\\\\=\dfrac{5}{2}\div \dfrac{3}{1}=2.5\div 3\rightarrow H_2~limiting~reactant(smaller~ratio)

  • Find volume H₂O

mol H₂O based on mol H₂, and from equation mol ratio H₂ : H₂O=2 : 2, so mol H₂O = 5 mol and the volume also 5 L

4 0
3 years ago
Equal volumes of H2 and o2 are placed in a balloon and then ignited. Assuming that the reaction goes to completion, which gas wi
Anastasy [175]
You will have excess O2. The ideal gas law dictates that all other variables kept the same, equal volume means equal number of moles.
7 0
3 years ago
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