139: More about Chemical Formulas (Higher)

Question 1

What is the chemical formula for methane?

Answer 1

CH4 (little 4)

Question 2

Atoms of oxygen and some other elements that are gases go around in what?

Answer 2

Pairs

Question 3

what is the name of atoms from the same elements, which go around in pairs called?

Answer 3

molecules

Question 4

is air a compound, element or mixture of gases?

Answer 4

air is a mixture of gases

Question 5

what is the chemical formula for magnesium oxide

Answer 5

MgO

Question 6

What is the formula for a nitrogen molecule?

Answer 6

N2 (little 2)

Question 7

What gases in the air are compounds?

Answer 7

Carbon Dioxide (CO2)

Question 8

What gases in the air are elements?

Answer 8

Nitrogen (N2), Ooxygen (O2) and Argon (Ar)

Question 9

What gases in the air are compounds?

Answer 9

Carbon Dioxide (CO2), Neon (Ne), Water (H2O) and Sulfur Dioxide (SO2)

Question 10

what is the chemical formula for magnesium oxide

Answer 10

MgO

Question 11

which of the following are elements: Ar. CO2, Ne, N2, O2, SO2, H2O

Answer 11

Ar and Ne