Tab 8/B - Chemistry

Front

What type of reaction occurs when acids are mixed with bases causing the generation of heat?

Back

Exothermic

Front

In a chemical reaction, what must be true about the number of elements on both sides of the equation?

Back

There must be the same number of elements on both sides of the equation.

Front

What type of chemical reaction gives off heat?

Back

Exothermic

Front

What is a property of a mixture?

Back

The individual components are not chemically combined.

Front

What holds covalent bonds together?

Back

Shared electrons.

Front

What is the definition of an exothermic reaction?

Back

A reaction that releases heat.

Front

What is the law of conservation of mass in a chemical reaction?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What distinguishes a mixture from a compound?

Back

In a mixture, the components retain their individual properties and are not chemically combined.

Front

What is a covalent bond?

Back

A bond formed when two atoms share one or more pairs of electrons.

Front

What happens to energy in an endothermic reaction?

Back

Energy is absorbed from the surroundings.