Question 1

subatomic particle with a positive charge

Accepted Answer

proton

Question 2

subatomic particle with no charge

Accepted Answer

neutron

Question 3

subatomic particle with a negative charge

Accepted Answer

electron

Question 4

Atoms of the same element that have different numbers of neutrons

Accepted Answer

isotope

Question 5

Atoms of the same element that have different numbers of electrons

Accepted Answer

ion

Question 6

releases H+ ions ; pH range 0 to 6

Accepted Answer

acids

Question 7

properties of acids

Accepted Answer

sour and corrosive

Question 8

releases OH- ions ; pH range of 8 to 14

Accepted Answer

bases

Question 9

any substance with a pH of 7

Accepted Answer

neutral

Question 10

SI unit for the amount of substance

Accepted Answer

mole

Question 11

compound with transfer of electrons ; no prefixes for naming

Accepted Answer

ionic compound

Question 12

compound formed by sharing electrons ; uses prefixes to name

Accepted Answer

covalent compound

Question 13

groups that are cations

Accepted Answer

1A, 2A, 3A

Question 14

groups that are anions

Accepted Answer

5A, 6A, 7A

Question 15

an element that has properties of both metals and nonmetals

Accepted Answer

metalloid

Question 16

bases do this to pH paper

Accepted Answer

turns red litmus paper blue

Question 17

acids do this to pH paper

Accepted Answer

turns blue litmus paper red

Question 18

a chemical equation that is NOT balanced

Accepted Answer

skeleton equation

Question 19

Matter is not created nor destroyed in any chemical or physical change ; must be equal before and after

Accepted Answer

law of conservation of mass

Question 20

diagrams showing all electrons

Accepted Answer

Bohr Model / Electron configuration

Question 21

diagram showing only valence electrons

Accepted Answer

Lewis Dot structure

Question 22

states that 8 is the stable number of valence electrons

Accepted Answer

octet rule

Question 23

states that 2 is the stable number of valence electrons

Accepted Answer

duplet rule

Question 24

starting material in a chemical equation

Accepted Answer

reactants

Question 25

Ending materials in a chemical reaction.

Accepted Answer

products

Question 26

speeds up a chemical reaction by lowering activation energy

Accepted Answer

catalyst

Question 27

small numbers written after elements and compounds that are never changed to balance equation

Accepted Answer

subscripts

Question 28

large numbers placed in front to balance equation by multiplying

Accepted Answer

coefficients

Question 29

the fast way of predicting the chemical formula of an ionic compound

Accepted Answer

criss-crossing method

Question 30

properties of bases

Accepted Answer

bitter and slippery

Question 31

decomposition reaction

Accepted Answer

AB --> A + B

Question 32

synthesis reaction

Accepted Answer

A + B --> AB

Question 33

3 things conserved in a chemical reaction

Accepted Answer

total mass, type of atoms , number of atoms

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