Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 2 - Matter and Change - Standardized Test Prep: 11

Answer

A) 4.3 g B) 22.6 g C) 19 g

Work Step by Step

A) 10.8g - 6.5g = 4.3 g B) 13.6g + 9.0g = 22.6 g C) 31.5g -12.5g = 19 g Explanation: Because mass is conserved in a chemical reaction, in which the sum of the masses of the reactants must equal of the mass of the products, simply make sure the mass of magnesium plus the mass of oxygen equals the mass of MgO
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