Physical Science quiz 9

Question 1

what reaction is 2 chemicals that combine to form one product
A + B = AB

Answer 1

Combination reactions

Question 2

what reaction is one chemical reacts with itself to form two products
AB = A+ B

Answer 2

Decomposition reactions

Question 3

what reaction is a cation switches places with a free element
A + BC = B + AC

Answer 3

Single displacement reactions

Question 4

what reaction is two cations switching places
AB +CD = CB + AD

Answer 4

Double displacement reactions

Question 5

what have particles of regular patterns and can be ionic, covalent, metallic, and molecular

Answer 5

Crystalline solid

Question 6

what has no shape; long molecules with no definite pattern (usually organic); no definite melting point

Answer 6

Amorphous solids

Question 7

the electrostatic interactions between molecules

Answer 7

Van der Waals forces

Question 8

polar molecules attract

Answer 8

polar molecules

Question 9

non-polar molecules attract

Answer 9

non-polar molecules

Question 10

a homogenous mixture of two or more substances

Answer 10

solution

Question 11

substance present in greater amount (usually water)

Answer 11

solovent

Question 12

substance being dissolved

Answer 12

solute

Question 13

amount of solute in a solvent

Answer 13

concentration

Question 14

what is the saturation point; the maximum amount that can be dissolved

Answer 14

solubility

Question 15

polar liquids dissolve

Answer 15

polar substances

Question 16

non-polar liquids dissolve

Answer 16

non-polar substances

Question 17

amphiphilic means

Answer 17

dissolves either polar or non-polar

Question 18

separation of compounds into ions as they dissolve in liquids; produces electrolytes will conduct electricity

Answer 18

dissociation

Question 19

dissociates to produce H+ and an anion; tastes sour; has a pH less than 7

Answer 19

acids

Question 20

dissociate completely; lower pH

Answer 20

strong acids

Question 21

dissociate only slightly; pH closer to 7

Answer 21

weak acids

Question 22

Dissociates to produce OH- and a cation; tastes bitte; slippery; have a pH greater than 7

Answer 22

Bases

Question 23

scale from 0-14 measuring acidity

Answer 23

the pH scale

Question 24

acids and bases what as the H+ reacting with the OH- produces water

Answer 24

neutralize

Question 25

ionic compounds made of a metal and a non-metal (borax, baking soda)

Answer 25

salt