Question 1

This is a particle model of AIR. Based on the particle model, the air we breathe is a/n

Accepted Answer

mixture

Answer

compound

Answer

simple molecule

Answer

element

Question 2

Some things listed on the Periodic Table exist in nature as pairs until/unless they react with other substances. We call these...

Accepted Answer

simple molecules

Answer

elements

Answer

compounds

Answer

mixtures

Question 3

Methane reacts with oxygen to produce carbon dioxide and water. Sort the chemical formulas into "Reactants" and "Products"

Question 4

Carbon, Lithium, Argon, Arsenic, and Neon are all examples of...

Accepted Answer

elements

Answer

simple molecules

Answer

compounds

Answer

mixtures

Question 5

"Magnesium burns in the presence of oxygen to form magnesium oxide." Match the substance to its description.

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