Question

to verify the law of conservation of mass a student added 5.5g of zinc to 16.3g of hydrochloric acid and result , zinc chloride is formed and hydrogen gas is liberated if the mass of zinc chloride is 15.5g what is the mass of hydrogen gas liberated​

Answer 1

Answer:

the mass of hydrogen gas liberated is 6.5g

Answer 2

Answer:

let mass of hydrogen = X

5.5 + 16.3 = X + 15.5

Explanation:

21.8 - 15.5 = X

X = 6.3

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