chemical reactions

Question 1

chemical reaction

Answer 1

the process in which one or more substances change to produce one or more different substances

Question 2

precipitate

Answer 2

a solid that is produced as a result of a chemical reaction in solution

Question 3

chemical formula

Answer 3

a combination of chemical symbols and numbers to represent a substance

Question 4

chemical equation

Answer 4

a representation of a chemical reaction that uses symbols to show reactants

Question 5

reactants

Answer 5

a substance or molecule that participates in a chemical reaction

Question 6

product

Answer 6

the substance that forms in a chemical reaction

Question 7

law of conservation of mass

Answer 7

the law that states that mass can’t be created or destroyed in ordinary chemical and physical reactions

Question 8

synthesis reaction

Answer 8

a reaction in which 2 or more substances combine to form a new substance

Question 9

decomposition reaction

Answer 9

a single compound breaks down to form 2 or more simpler substances

Question 10

single displacement reaction

Answer 10

an element that replaces another element that is a part of a compound

Question 11

double displacement reaction

Answer 11

a reaction in which ions form 2 compounds and exchange places

Question 12

exothermic reaction

Answer 12

heat being released in a chemical reaction

Question 13

endothermic reaction

Answer 13

heat going into a reaction

Question 14

law of conservation of energy

Answer 14

energy can’t be created or destroyed

Question 15

activation energy

Answer 15

the minimum amount of energy in a chemical reaction

Question 16

inhibitor

Answer 16

a substance that slows down or stop the reaction

Question 17

calayst

Answer 17

speeds up chemical reaction