Chemical Reactions Test

Front

What type of chemical reaction is represented by the equation: Hydrocarbon + Oxygen → Carbon Dioxide + Water?

Back

Combustion

Front

What determines the number of valence electrons an element has?

Back

The group/column the element is in.

Front

Balance the equation: ___ H2 + ___ O2 → ___ H2O

Back

2, 1, 2

Front

What is the left part of a chemical equation called?

Back

Reactants

Front

Balance the equation: ___ Mg + ___ O2 → ___ MgO

Back

2, 1, 2

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What are products in a chemical reaction?

Back

Substances that are formed as a result of a chemical reaction.

Front

Define a synthesis reaction.

Back

A reaction where two or more reactants combine to form a single product.

Front

What is a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.