Writing and Balancing Chemical Equations/Formula Mass and the Mole Concept

Question Description

Need help answer the question below. Please explain

6.1 Formula Mass and the Mole Concept

What is the total mass of hydrogen in each of the molecules?

(a) CH4

(b) CHCl3

(c) C12H10O6


7.1 Writing and Balancing Chemical Equations

A novel process for obtaining magnesium from sea water involves several reactions. Write a balanced chemical

equation for each step of the process.

(a) The first step is the decomposition of solid calcium carbonate from seashells to form solid calcium oxide and

gaseous carbon dioxide.

(b) The second step is the formation of solid calcium hydroxide as the only product from the reaction of the solid

calcium oxide with liquid water.

(c) Solid calcium hydroxide is then added to the seawater, reacting with dissolved magnesium chloride to yield solid

magnesium hydroxide and aqueous calcium chloride.

(d) The solid magnesium hydroxide is added to a hydrochloric acid solution, producing dissolved magnesium

chloride and liquid water.

(e) Finally, the magnesium chloride is melted and electrolyzed to yield liquid magnesium metal and diatomic

chlorine gas

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