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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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PtichkaEL [24]

Answer:

Given : No. Of moles = 1.5

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Therefore, 1.5 x 6.022 x 10²³ = N

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7 0
3 years ago
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Consider the reaction between acetylene, c2h2, and oxygen in a welding torch: 2c2h2(g) + 5o2(g) → 4co2(g) + 2h2o(g) if 5.4 moles
fredd [130]
<span>                                      2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)
   from the reaction     2 mol                              4 mol
from the problem      5.4 mol                         10.8 mol

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Use electron configurations to account for the stability of the lanthanide ions Ce⁴⁺ and Eu²⁺.
Citrus2011 [14]

Answer:

Explanation:

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[Xe] 4f¹5d¹6s²

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Eu  has electronic configuration as follows

[ Xe ] 4 f ⁷6s²

[ Xe ] 4 f ⁷

Its outermost orbit contains 2 electrons so  Eu²⁺ is stable. Its +3 oxidation state is also stable.

Ce⁺²

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