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MaRussiya [10]
2 years ago
9

How does the law of conservation of mass apply to this reaction: C2H4+O2=H2O+Co2?

Chemistry
2 answers:
polet [3.4K]2 years ago
5 0

Answer:  Only the oxygen needs to be balanced.  There are equal numbers of hydrogen and carbon.

Explanation:

pav-90 [236]2 years ago
3 0
Consider the formation of water molecule. Hydrogen combines with oxygen to form  a water molecule.

 

In this case, the total mass of the reactants = total mass of the products. Also, the number of atoms of hydrogen and oxygen in the reactants side and the products side are equal.

that's all I know

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To solve this problem, we can use the <em>Combined Gas Laws</em>:

p₁V₁/T₁ = p₂V₂/T₂             Multiply each side by T₁

   p₁V₁ = p₂V₂ × T₁/T₂      Divide each side by V₁

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T₁ = (31.5 + 273.15) K = 304.65 K

T₂ = (21.0 + 273.15) K = 294.15 K

(b) Calculate the <em>pressure </em>

p₁ = 122.2 kPa × (29.2/34.3) × (304.65/294.15)  

   = 122.2 kPa × 0.8542 × 1.0357

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