Chemical Reactions Unit Review Amplify

Front

What is a chemical reaction?

Back

A process where substances (reactants) transform into different substances (products) through the breaking and forming of chemical bonds.

Front

True or False: In a complete chemical equation, the number of atoms of each element must be the same on both sides.

Back

True

Front

What is a molecule?

Back

A group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Front

What are the properties of matter?

Back

Properties of matter include magnetism, color, odor, density, and state (solid, liquid, gas).

Front

How many atoms of nitrogen (N) are in the products of the equation N2 + 3H2 → 2NH3?

Back

4

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is a reactant?

Back

A substance that undergoes a chemical change in a reaction.

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

What does it mean for a chemical equation to be balanced?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation.