Chem Unit 1A Review

Front

How many Protons does Bromine have?

Back

35

Front

When heat is released it is an

Back

exothermic reaction

Front

Wood burned in a fireplace is an example of a

Back

Chemical Change

Front

What kind of physical property is Density?

Back

intensive

Front

Each column (up & down) in the periodic table is called a

Back

group

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings.

Front

What is the difference between intensive and extensive properties?

Back

Intensive properties do not depend on the amount of substance, while extensive properties do.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.