Chemistry Extra Credit #2 - 1 period

What is the charge on a calcium ion?

2+

The subscript on the potassium in the compound K2MnO4, means

There are 2 potassium atoms in the compound

How many dots would you put around the Lewis dot diagram for the noble gas Argon (Ar)?

8

What is the formula for the compound dinitrogen trioxide?

N2O3

How would you named as a diatomic element?

Hydrogen

The different between the nitrite ion and nitrate ion is…

the number of oxygen's is greater for nitrate

What is the name of the compound formed between sodium and the phosphate ion?

Sodium Phosphate

What is the formula formed between hydrogen and the nitrate ion?

HNO3

Ions that are formed from more than 1 element and have a single charge distributed over the group of atoms is called…

polyatomic ion

What compound contains the lead (IV) ion?

PbO2

Ions are charged atoms that have

different numbers of protons and neutrons

What is the name of the covalent substance CCl4?

Carbon Tetrachloride

The nickel ll ion would have what type of formula?

Ni+2

Ionic compound different from covalent compounds..

because ionic compounds are made between metals and non-metals and molecular compounds are made from non-metal elements.

The formula and name for a compound between Al+3 and S-2

Al2S3-Aluminum Sulfide

What ifs the formula of the compound formed between sodium and the phosphate ion?

Na3Po4

What is the name of the compound formed between Fe+2 ion and the sulfate ion?

Iron (ll) Sulfate

What is the correct name for N2O5

Dinitrogen pentoxide

What is the formula for the compound dinitrogenn heptaoxide

N2O7

The type of compound written using 2 non-metals is called…

molecular (covalent) compound