Atomic Structure & Chemical Reactions Biology 11 (2.1)

Front

What charge do atoms have when they GAIN electrons?

Back

Negative (-) charge

Front

What is a balanced chemical reaction?

Back

A reaction where the number of atoms for each element is the same on both sides of the equation.

Front

In a solution of Kool-Aid, which component is the solvent?

Back

Water

Front

Define a solvent.

Back

The substance that does the dissolving in a solution.

Front

What characterizes a neutral atom?

Back

A neutral atom has an equal number of protons and electrons.

Front

What happens to the charge of an atom when it loses electrons?

Back

It becomes positively charged.

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 is the difference between a solute and a solvent?

Back

A solute is the substance being dissolved, while a solvent is the substance doing the dissolving.

Front

What is the formula for calculating the number of neutrons in an atom?

Back

Number of Neutrons = Atomic Mass - Atomic Number.

Front

What is an ionic bond?

Back

A chemical bond formed through the transfer of electrons from one atom to another.