2. Write the following word equations as chemical equations. Be sure to include the states of matter and balance the chemical reaction. Classify the type of reaction for each one. a. Solid aluminum metal reacts with a solution of hydrobromic acid to produce aqueous aluminum bromide and hydrogen gas. b. Aqueous copper (II) hydroxide decomposes to produce solid copper (II) oxide and liquid water.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".