Question 1

indicates the number of moles of all parts in a balanced equation

Accepted Answer

coefficient

Question 2

SI unit for amount of substance

Accepted Answer

mole

Question 3

substances with a pH of 0 to 6

Accepted Answer

acid

Question 4

substances with a pH of 8 to 14

Accepted Answer

base

Question 5

ion released by acids in water

Accepted Answer

Hydrogen ( H+ )

Question 6

ion released by bases in water

Accepted Answer

Hydroxide ( OH- )

Question 7

the taste of acids

Accepted Answer

sour

Question 8

the taste of bases

Accepted Answer

bitter

Question 9

acids cause this change to pH litmus paper

Accepted Answer

blue to red

Question 10

bases cause this change to pH litmus paper

Accepted Answer

red to blue

Question 11

neutral substances in pH litmus paper

Accepted Answer

no color change to red or blue pH paper

Question 12

6.02 x 10^23 representative particles

Accepted Answer

Avogadro's number

Question 13

conditions where all gases have 22.4 L per mole

Accepted Answer

STP

Question 14

having 4 atoms ; elements P and As

Accepted Answer

tetratomic

Question 15

having 2 atoms ; there are 7 elements

Accepted Answer

diatomic

Question 16

having 1 atom ; most elements on periodic table

Accepted Answer

monatomic

Question 17

standard temperature in degrees Celsius (STP)

Accepted Answer

0 (zero)

Question 18

standard pressure in atm's (STP)

Accepted Answer

1 (one)

Question 19

amount of space taken up ; 22.4L at STP for all gases

Accepted Answer

volume

Question 20

any substance with a pH of 7

Accepted Answer

neutral

Question 21

result of mixing equal amounts of a strong acid and strong base

Accepted Answer

ionic salt

Question 22

found by multiplying atomic mass times # of atoms

Accepted Answer

molar mass

Question 23

material that gets completely used up during chemical reaction

Accepted Answer

limiting reagent

Question 24

material that has "leftovers" after chemical reaction is over

Accepted Answer

excess reagent

Question 25

ratio of actual yield to theoretical yield times 100%

Accepted Answer

percent yield

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