Chem Semester 1 Review

Front 1

add _____ to _____.

Back 1

acid to water

Front 2

the red portion of the hazard diamond represents...

Back 2

flammability

Front 3

the blue portion of the hazard diamond represents...

Back 3

health

Front 4

the yellow portion of the hazard diamond represents...

Back 4

reactivity

Front 5

the white portion of the hazard diamond represents...

Back 5

special hazard

Front 6

define accuracy

Back 6

how correct your answer is

Front 7

define precision

Back 7

how common your answer is to other answers

Front 8

leading zeros ____ significant.

Back 8

aren't

Front 9

captive zeros _____ significant

Back 9

are

Front 10

trailing zeros _____ significant

Back 10

are, if there's a decimal point

Front 11

what is the value of a mole?

Back 11

6.02x10^23

Front 12

list the characteristics of a solution

Back 12

• homogeneous

• very small particles

• no Tyndall effect

• particles don't settle

Front 13

list the characteristics of a solution

Back 13

• homogeneous

• very small particles

• no Tyndall effect

• particles don't settle

Front 14

list the characteristics of a colloid

Back 14

• heterogeneous

• medium sized particles

• Tyndall effect

• particles don't settle

Front 15

list the characteristics of a solution

Back 15

• homogeneous

• very small particles

• no Tyndall effect

• particles don't settle

Front 16

list the characteristics of a colloid

Back 16

• heterogeneous

• medium sized particles

• Tyndall effect

• particles don't settle

Front 17

list the characteristics of a suspension

Back 17

• heterogeneous

• large particles

• Tyndall effect

• particles settle

Front 18

list the physical separation technique

Back 18

• difference in densities

• filtration

• magnetism

• chromatography

• distillation

• evaporation

Front 19

list the physical separation technique

Back 19

• difference in densities

• filtration

• magnetism

• chromatography

• distillation

• evaporation

Front 20

list the 5 indications of a chemical change

Back 20

• color change

• light emitted

• temp change

• precipitate

• gas production

Front 21

list the physical separation technique

Back 21

• difference in densities

• filtration

• magnetism

• chromatography

• distillation

• evaporation

Front 22

list the 5 indications of a chemical change

Back 22

• color change

• light emitted

• temp change

• precipitate

• gas production

Front 23

what is the law of conservation of mass?

Back 23

the mass is neither created or destroyed in regular reactions

Front 24

list the physical separation technique

Back 24

• difference in densities

• filtration

• magnetism

• chromatography

• distillation

• evaporation

Front 25

list the 5 indications of a chemical change

Back 25

• color change

• light emitted

• temp change

• precipitate

• gas production

Front 26

what is the law of conservation of mass?

Back 26

the mass is neither created or destroyed in regular reactions

Front 27

what is the law of definite proportions?

Back 27

compounds contain the same elements in the same ratio by mass

Front 28

list the physical separation technique

Back 28

• difference in densities

• filtration

• magnetism

• chromatography

• distillation

• evaporation

Front 29

list the 5 indications of a chemical change

Back 29

• color change

• light emitted

• temp change

• precipitate

• gas production

Front 30

what is the law of conservation of mass?

Back 30

the mass is neither created or destroyed in regular reactions

Front 31

what is the law of definite proportions?

Back 31

compounds contain the same elements in the same ratio by mass

Front 32

what is the law of multiple proportions?

Back 32

2 or more different compounds composed of the same two elements have ratios of smal whole #s

Front 33

list the physical separation technique

Back 33

• difference in densities

• filtration

• magnetism

• chromatography

• distillation

• evaporation

Front 34

list the 5 indications of a chemical change

Back 34

• color change

• light emitted

• temp change

• precipitate

• gas production

Front 35

what is the law of conservation of mass?

Back 35

the mass is neither created or destroyed in regular reactions

Front 36

what is the law of definite proportions?

Back 36

compounds contain the same elements in the same ratio by mass

Front 37

what is the law of multiple proportions?

Back 37

2 or more different compounds composed of the same two elements have ratios of smal whole #s

Front 38

what two laws in daltons theory were proven wrong?

Back 38

• atoms cannot be created or destroyed

• all atoms of an element are alike

Front 39

list the physical separation technique

Back 39

• difference in densities

• filtration

• magnetism

• chromatography

• distillation

• evaporation

Front 40

list the 5 indications of a chemical change

Back 40

• color change

• light emitted

• temp change

• precipitate

• gas production

Front 41

what is the law of conservation of mass?

Back 41

the mass is neither created or destroyed in regular reactions

Front 42

what is the law of definite proportions?

Back 42

compounds contain the same elements in the same ratio by mass

Front 43

what is the law of multiple proportions?

Back 43

2 or more different compounds composed of the same two elements have ratios of smal whole #s

Front 44

what two laws in daltons theory were proven wrong?

Back 44

• atoms cannot be created or destroyed

• all atoms of an element are alike

Front 45

what is an atoms mass made of?

Back 45

protons+neutrons