91Ó°ÊÓ

Which is a composition reaction and which is not? a) \(2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightarrow 2 \mathrm{SO}_{3}\) b) \(6 \mathrm{C}+3 \mathrm{H}_{2} \rightarrow \mathrm{C}_{6} \mathrm{H}_{6}\)

In the reaction \(2 \mathrm{Ca}(\mathrm{s})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{CaO}\) indicate what has lost electrons and what has gained electrons.

In the reaction $$ 2 \mathrm{Ca}(\mathrm{s})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{CaO} $$ indicate what has lost electrons and what has gained electrons.

Write a chemical equation that represents ( \(\left.\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4}(\mathrm{~s})\) dissociating in water.

Predict the products of each acid-base combination listed. Assume that a neutralization reaction occurs. a) \(\mathrm{HCl}\) and \(\mathrm{KOH}\) b) \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and \(\mathrm{KOH}\) c) \(\mathrm{H}_{3} \mathrm{PO}_{4}\) and \(\mathrm{Ni}(\mathrm{OH})_{2}\)

Assuming that each single-replacement reaction occurs, predict the products and write each balanced chemical equation. a) \(\mathrm{Zn}+\mathrm{Fe}\left(\mathrm{NO}_{3}\right)_{2} \rightarrow\) ? b) \(\mathrm{F}_{2}+\mathrm{FeI}_{3} \rightarrow\) ?

From the statement "magnesium hydroxide reacts with nitric acid to produce magnesium nitrate and water," identify the reactants and the products.

Write a chemical equation that represents \(\mathrm{Fe}\left(\mathrm{C}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\right)_{3}(\mathrm{~s})\) dissociating in water.

From the statement "propane reacts with oxygen to produce carbon dioxide and water," identify the reactants and the products.

Which is a composition reaction and which is not? a) \(4 \mathrm{Na}+2 \mathrm{C}+3 \mathrm{O}_{2} \rightarrow 2 \mathrm{Na}_{2} \mathrm{CO}_{3}\) b) \(\mathrm{Na}_{2} \mathrm{CO}_{3} \rightarrow \mathrm{Na}_{2} \mathrm{O}+\mathrm{CO}_{2}\)