part 2

Question 1

reactants

Answer 1

reactants are the substance you begin with in a chemical reaction

Question 2

products

Answer 2

products are the substance that are created in a chemical reaction

Question 3

reactivity

Answer 3

whether a substance has changed or not

Question 4

corrodibility

Answer 4

whether or not a substance breaks down due to a chemical reaction with water or oxygen

Question 5

flammability

Answer 5

whether a substance has the ability to be burned or not.

Question 6

toxicity

Answer 6

whether a substance is poisonous or not

Question 7

light sensitivity

Answer 7

whether a substance reacts with light or not

Question 8

Law of Conservation of Mass

Answer 8

in a chemical reaction, the total mass of the reactants is the same as the total mass of the products

Question 9

Law of Constant Proportions

Answer 9

in chemical compounds the ratio of the elements is always the same

Question 10

exothermic

Answer 10

chemical reactions that give out heat energy

Question 11

endothermic

Answer 11

chemical reactions that absorb heat energy from the surroundings

Question 12

chemical energy

Answer 12

energy stored in chemical bonds that is released during chemical reactions

Question 13

chemical process

Answer 13

a reaction that changes the arrangement of the atoms or molecules of the substances involved

Question 14

synthesis reactions

Answer 14

synthesis reactions occur when two chemicals combine to form one larger particle

Question 15

decomposition reaction

Answer 15

decomposition reactions occur when one chemical compound breaks up to from two or more smaller chemicals.

Question 16

combustion reaction

Answer 16

combustion reactions happen when something organic reacts with oxygen to form carbon dioxide gas and water.

Question 17

single displacement reactions

Answer 17

single displacement reactions happen when a pure element replaces another element in chemical compound

Question 18

double displacement reaction (precipitation reaction)

Answer 18

double displacement reactions happen when the cations of two ionic compounds switch places and forms a solid

Question 19

acid base reaction

Answer 19

also known as neutralization reactions, are just double displacement reactions in which water is formed.

Question 20

alpha particle/decay

Answer 20

Alpha particles, also called alpha ray or alpha radiation, consist of two protons and two neutrons bound together. they have a positive charge. alpha particles can be stopped by a sheet of paper

Question 21

beta particle/decay

Answer 21

A beta particle, also called beta ray or beta radiation, is a high-energy, high-speed electron emitted by the radioactive decay of an atomic nucleus during the process of beta decay. Aluminum can stop a beta particle.

Question 22

gamma ray/decay

Answer 22

gamma rays have no mass and no charge. they are made up of electromagnetic waves. lead can stop gamma rays

Question 23

isotope

Answer 23

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom.