Grade 9 Science

Until the ______century, no standardized system existed for naming chemicals

True or false. Ionic compounds are Solids at room temperature.

NaCl is an ______

What is the difference between Fe²+ and Fe³+?

Table salt's chemical name is____.

A group of atoms acting as one. Ex. Carbonate (CO3₂-) is are refered to as______

Baking soda’s chemical name is _______

 sodium fluoride

When non-metals combine, a pure substance called a molecule or a _______ is formed. 

LiCl(s) is 

True or false. No subscript number indicates that only one atom of that element is needed.

Molecular compounds have ______ bonds.

Atomos means______

Atoms that have become electrically charged because of losing or gaining electrons. are_____

Prefix penta means_____

What do Subscript numbers in a chemical formula indicate?

The formula that identifies the elements in the compound and the amount of each element is ____

The chemistry test for section 3 will be on ________.

“Sub” means ______

Lithium Oxide is a_____bond.

Sugar is a _________

Hydrochloric acid is the same as______.

Prefix Mono means_______

Pure substance formed by the bonding of at least one metal and one non-metal is ______

H₂O. Notice that next to the H is a small 2. This 2 is refered as a___