Daily Warm Up: Chemistry Part 1

Front

What is a molecule?

Back

A molecule is a group of atoms bonded together.

Front

Reactants in a chemical reaction are:

Back

the substances that are consumed in the reaction

Front

What are the products in a chemical reaction?

Back

Products

Front

What best describes a chemical reaction?

Back

A process that involves the transformation of one or more substances into different substances

Front

What is a chemical change?

Back

A process where substances combine or break apart to form new substances.

Front

What is a physical change?

Back

A change in which the substance's physical properties are altered but its chemical identity remains the same

Front

Endothermic reaction

Back

A reaction that absorbs heat from the surroundings

Front

Exothermic reaction

Back

A reaction that releases energy in the form of heat

Front

A catalyst in a chemical reaction is:

Back

a substance that increases the rate of a reaction without being consumed

Front

Explain the Law of Conservation of Mass.

Back

The mass of the reactants is equal to the mass of the products.