Chem Fall Final Practice MC

Front

What is the correct chemical formula for silver and bromine?

Back

AgBr (silver bromide)

Front

What type of property is copper's ability to conduct electricity?

Back

Intensive physical property

Front

How do you calculate the number of neutrons in an atom?

Back

Number of neutrons = Atomic mass - Atomic number

Front

In a polar covalent bond, where are the electrons more likely to be found?

Back

Closer to the more electronegative atom.

Front

How many electrons does an atom with an atomic number of 20 and a charge of +2 have?

Back

18 electrons

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

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 significance of the atomic mass of an element?

Back

It represents the average mass of an atom of an element, accounting for isotopes.

Front

What is a chemical property?

Back

A characteristic that can only be observed during a chemical reaction.

Front

What is the charge of a neutron?

Back

Neutrons have no charge (neutral).