2.2 Chemical Formulas and Equations

Question 1

a combination of chemical symbols and numbers to represent a substance

Answer 1

chemical formula

Question 2

a representation of a chemical reaction that uses symbols to show the relationship between reactants and the products

Answer 2

chemical equation

Question 3

a substance or molecule that participates in a chemical reaction

Answer 3

reactant

Question 4

the substance that forms in a chemical reaction

Answer 4

product

Question 5

the law that states that mass can not be created or destroyed in ordinary chemical and physical changes

Answer 5

law of conservation of mass

Question 6

a number that is placed in front of a chemical symbol or formula

Answer 6

coefficient

Question 7

a number written below and to the right of a chemical symbol in a formula

Answer 7

subscript

Question 8

French chemist that found that the total mass of the reactants was always the same as the total mas of the products and his work led to the law of conservation of mass

Answer 8

Antione Lavoisier