Matter: Property and Changes Vocab

Front

What is the law of conservation of mass?

Back

The law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction.

Front

What is a chemical change?

Back

A change in matter in which the substances that make up the matter change into other substances with different chemical and physical properties.

Front

How many types of atoms are in a molecule of sugar C12H22O11?

Back

3

Front

What is volume?

Back

The amount of space a substance takes up.

Front

What is an endothermic reaction?

Back

A reaction in which more energy is required to break the bonds of the reactants than is released when products form.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without changing its chemical composition.

Front

What is an atom?

Back

The smallest unit of an element that maintains the properties of that element.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.