solutions test

Question 1

mixture

Answer 1

combination of two or more substances that are not chemically combined

Question 2

salt

Answer 2

ionic compound that forms when a metal atom replaces the hydrogen of an acid

Question 3

electrolyte

Answer 3

substance that dissolves in water to give a solution that conducts an electric current ex. salt

Question 4

non-electrolyte

Answer 4

substance that doesn’t ionize when dissolved, are polar-covalent/covalent

Question 5

neutralization

Answer 5

reaction of the ions that characterize acids and the ions that characterize bases to form water molecules and a salt

Question 6

hydroxide ion

Answer 6

OH, in bases

Question 7

hydronium/ hydrogen ion

Answer 7

H, in acids

Question 8

indicator

Answer 8

compound that can reversibly change color depending on conditions such as pH

Question 9

dissolve

Answer 9

to break down into a liquid

Question 10

dissociate

Answer 10

cation and anion get surrounded by water and pulled apart, breaking atoms and ions into smaller forms

Question 11

weak acid

Answer 11

are partially ionized in water

Question 12

strong acid

Answer 12

fully ionize in water

Question 13

dilute

Answer 13

small amount of solute, a lot of water

Question 14

concentration

Answer 14

the amount of a solute that can be dissolved in a given amount of solution

Question 15

homogenous mixture

Answer 15

mixture that looks the same

Question 16

heterogeneous mixture

Answer 16

mixture that looks different

Question 17

solution

Answer 17

a homogeneous mixture throughout which two or more substances are uniformly dispersed

Question 18

acid

Answer 18

react with water to make hydronium and an anion, HAS H IN EQUATIONS, reacts w metals to make salt and hydrogen, reacts with bases to make salt and water, sour taste, are electrolytes, litmus paper=red

Question 19

base

Answer 19

dissociate in water to make hydroxide and a cation, HAS OH IN EQUATIONS, becomes less basic when mixed w acids–> makes salt and water, soapy, are electrolytes when dissolved in water, litmus paper= blue

Question 20

pH

Answer 20

value that is used to express the acidity of a system, pH of 7= neutral, less than 7= acidic, more than 7= basic

Question 21

polar

Answer 21

anything that dissolves in water, structure all looks the same

Question 22

non-polar

Answer 22

anything that doesn’t dissolve in water, structure isn’t unifrom

Question 23

solute

Answer 23

in a solution the substance that dissolves in the solvent

Question 24

solvent

Answer 24

in a solution the substance in which the solute dissolves, present in the greatest amount in volume

Question 25

concentrated

Answer 25

large amount of solute, little water

Question 26

weak base

Answer 26

are partially dissociated in water

Question 27

strong base

Answer 27

strong bases are fully dissociated in water