Chemical Reactions

What type of chemical reaction occurs when two substances combine to form a single compound?

• Combustion reaction

• Synthesis reaction

• Decomposition reaction

• Single replacement reaction

In a decomposition reaction, what happens to the reactant?

• It combines with other substances

• It remains unchanged

• It breaks down into simpler substances.

• It evaporates completely

What type of chemical reaction involves the exchange of ions between two compounds?

• Decomposition reaction

• Combustion reaction

• Single displacement reaction

• Double displacement reaction

When a metal reacts with an acid to produce a salt and hydrogen gas, what type of reaction is this?

• Single displacement reaction

• Decomposition reaction

• Combustion reaction

• Double displacement reaction

In a combustion reaction, what are the typical products formed?

• Carbon monoxide and sulfur dioxide

• Carbon dioxide and water

• Hydrogen and helium

• Oxygen and nitrogen