CH 5 (6to)

True or False: Fusion is the process that happens when a solid turns into gas.

In chemistry, energy refers to...

Freeze occurs when matter gains energy.

________ is the process that allows to separate two liquids that have different boiling points.

An atom that loses an electron forms an ion with a __________ charge.

Atoms that gain electrons and acquire a negative charge are called _________.

True or False: A molecule only occurs when two atoms bond together.

This picture is an example of a _______________ bond.

What do we call a reaction that absorbs heat?

The measurement of a substance’s heat or thermal energy is called:

An atom that gains an electron forms an ion with a __________ charge.

(Na⁺) is an example of particle called ___________.

Which one is an example of a chemical change?

True or False: Sublimation is when a solid turns into a liquid before becoming a gas.

_________ are the subatomic particles that participate in the formation of chemical bonds.

What type of chemical reaction is this?

Which one is an example of a physical change?

(Cl^-) is an example of a particle called ____________.

A solid body turns into a liquid when:

What do we call particles that have lost or gained electrons?

What do we call the combination of symbols and numbers that indicate the elements in a compound and their proportions?

What is the name of the law that states that atoms can't be created or destroyed?

True or False: This is an example of a covalent bond.

What type of chemical reaction is this? 2 K_s + Cl_2g → 2 KCl_s

An example of Vaporization is...