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Genrish500 [490]
2 years ago
11

An atom that gains or loses an electron has a net electric charge and is called a/n

Chemistry
2 answers:
Fofino [41]2 years ago
8 0
That would be an ion, so A.
uysha [10]2 years ago
7 0
I believe the answer is A
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Explanation:

Using the general gas equation;

PV = nRT

Where;

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The balanced chemical equation in this question is as follows:

CaC2(s) + 2H2O(l) --> Ca(OH)2(aq) + C2H2(g)

From the equation, 1 mole of CaC2 produces 1 mole of ethylene gas, C2H2.

Using mole = mass/molar mass

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Hence, 0.00857mol of CaC2 produced 0.00857mol of C2H2

Based on the information provided, n = 0.00857mol, T = 43°C = 43 + 273 = 316K, p = 0.926 atm

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V = nRT/P

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V = 0.222/0.926

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= 239.7mL

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