Chapter 3 key terms

Question 1

What are 3 types of chemical reactions?

Answer 1

Combustion reactions, decomposition reactions, Combination reactions

Question 2

What is a combination reaction?

Answer 2

when 2 or more substances react to form one product

Question 3

What is a decomposition reaction?

Answer 3

where one substance breaks down into 2 or more substances

Question 4

What is the product of a decomposition reaction of a metal carbonate?

Answer 4

carbon dioxide and a metal oxide

Question 5

What is a combustion reaction?

Answer 5

rapid reactions that produce a flame and most often involve oxygen in the air as a reactant

Question 6

What are the products of a combustion reaction when burning hydrocarbons?

Answer 6

carbon dioxide and water

Question 7

What is formula weight?

Answer 7

The sum of atomic weights for the atoms in a chemical formula

Question 8

What is molecular weight?

Answer 8

the sum of the atomic weights of the atoms in a molecule
-if the substance is a molecule, the formula weight is also called its molecular weight