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Author Question: Mg can react with HCl to produce the white solid MgCl2 and H2 gas. A student mixes 1.99 g of Mg with ... (Read 30 times)

gbarreiro

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Question 1

A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much calcium is contained in 35.0 g of calcium fluoride?
◦ 15.0 g
◦ 1.99 g
◦ 7.70 g
◦ 18.0 g

Question 2

Mg can react with HCl to produce the white solid MgCl2 and H2 gas.  A student mixes 1.99 g of Mg with 5.98 g of HCl.  If the mass of the white solid is 7.79 g, then what is the mass of H2 produced?
◦ 2.0 g
◦ 15.76 g
◦ 0.0 g
◦ 0.18 g


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Marked as best answer by gbarreiro on Feb 15, 2020

fwbard

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gbarreiro

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Reply 2 on: Feb 15, 2020
Thanks for the timely response, appreciate it


xiazhe

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Reply 3 on: Yesterday
:D TYSM

 

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