chemistry - unit 1

Question 1

A substance that is dissolved in a solution

Answer 1

solute

Question 2

water fearing

Answer 2

hydrophobic

Question 3

compound that forms hydroxide ions (OH-) in a solution

Answer 3

bases

Question 4

A combination of two or more substances that are not chemically combined

Answer 4

mixture

Question 5

a mixture in which the composition is not uniform throughout

Answer 5

heterogeneous mixture

Question 6

a mixture that forms when one substance dissolves another

Answer 6

solution

Question 7

substances that do not readily dissolve into true solutions. a cross between solution and suspension.

Answer 7

colloids

Question 8

carbon-based molecules

Answer 8

organic molecules

Question 9

scale with values from 0 to 14, used to measure the concentration of H+ ions in a solution

Answer 9

pH scale

Question 10

pH greater than 7 on pH scale

Answer 10

basic

Question 11

Basic unit of matter

Answer 11

atom

Question 12

protons, neutrons, electrons

Answer 12

3 particles of an atom

Question 13

Positively charged particles

Answer 13

proton

Question 14

neutral charge particles

Answer 14

neutron

Question 15

negatively charged particles

Answer 15

electron

Question 16

a molecule composed of one kind of atom that cant be broken down. Several different types are found in nature.

Answer 16

elements

Question 17

number of ___ in an atom defines the element

Answer 17

protons

Question 18

charged atom. has an unequal number of protons and atoms

Answer 18

ions

Question 19

2 types of ions

Answer 19

cation, anion

Question 20

anion

Answer 20

a negatively charged ion

Question 21

cation

Answer 21

a positively charged ion

Question 22

two or more atoms bonded of the same element

Answer 22

molecule

Question 23

molecules that contain more than one element

Answer 23

compounds

Question 24

a chemical bond resulting from the attraction between oppositely charged ions.

Answer 24

ionic bond

Question 25

known for having ionic bonds

Answer 25

salts

Question 26

a chemical bond formed when two atoms share electrons

Answer 26

covalent bond

Question 27

a covalent bond in which the electrons are shared equally by the two atoms

Answer 27

nonpolar covalent bond

Question 28

a covalent bond in which electrons are not shared equally

Answer 28

polar covalent bond

Question 29

a mixture in which the composition is uniform throughout

Answer 29

homogeneous mixture

Question 30

in a solution, the substance in which the solute dissolves

Answer 30

solvent

Question 31

a heterogeneous mixture where components are distributed evenly temporarily

Answer 31

suspensions

Question 32

water loving

Answer 32

hydrophillic

Question 33

non-carbon based molecules

Answer 33

inorganic molecules

Question 34

___ molecules are abundent in living things

Answer 34

organic

Question 35

pH less than 7 on pH scale

Answer 35

acid

Question 36

compound that forms hydrogen ions (H+) in a solution

Answer 36

acid

Question 37

the making and breaking of chemical bonds

Answer 37

chemical reactions

Question 38

A starting material in a chemical reaction

Answer 38

reactants

Question 39

elements or compounds produced by a chemical reaction

Answer 39

products