First Chapter

Question 1

Metric System Unit for Mass

Answer 1

gram

Question 2

Metric System Unit for Volume

Answer 2

liter

Question 3

Metric System Unit for Length

Answer 3

meter

Question 4

Metric System Unit for Time

Answer 4

second

Question 5

Metric Symbol for: Gram, Meter, Liter

Answer 5

Gram= g Meter= m Liter= l

Question 6

Metric Abbreviations: Mega, Kilo, Hecto, Deka, Deci, Centi, Milli, Nano

Answer 6

Mega= M Kilo= k Hecto= h Deka= da Deci= d Centi= c Milli= m Nano= n

Question 7

Significant Digits

Answer 7

Digits which are measured. All non-zero digits are significant. Zeroes are significant unless they are placeholders.

Question 8

Scientific Notation

Answer 8

A Number expressed as A X 10B

Question 9

Convert to Scientific Notation: 1) 695 2) 0.04 3) 3000

Answer 9

1) 6.95 X 10^2 2) 4 X 10^-2 3) 3 X 10^3

Question 10

Convert from Scientific Notation 1) 1.23 x 10^4 2) 6 x 10^-3

Answer 10

1) 12300 2) 0.006

Question 11

How many significant digits? 1) 300 2) 0.0020 3) 4006 4) 5.00

Answer 11

1) 1 2) 2 3) 4 4) 3

Question 12

Scientific Law

Answer 12

1. An event which occurs with unvarying regularity. (Law of gravity)

Question 13

Hypothesis

Answer 13

A tentative explanation of observations which requires further experimentation .

Question 14

Energy

Answer 14

The ability to do work; it is released or absorbed during chemical reactions in the form of heat, light, electricity. (Calorie, Joule: 1 Cal = 4.18J)

Question 15

Matter

Answer 15

A substance that occupies space and has mass.

Question 16

Metric Abbreviations: Seconds, Celsius, Kelvin, Moles, Amperes

Answer 16

Seconds = s Celsius = ºC Kelvin = K Moles = mol Amperes = A

Question 17

Compare Weight and Mass

Answer 17

In a substance: Mass is the AMount of matter. Wight measures gravitational force. Mass never varies; weight does.

Question 18

Metric Prefixes for: 1) 0.1 2) 0.01 3) 0.001 4) 0.000000001

Answer 18

1) deci 2) centi 3) milli 4) nano

Question 19

Compare freezing and boiling points of water in: - Celsius - Kelvin - Fahrenheit

Answer 19

• ºC Freezing: 0 Boiling: 100 - K Freezing: 273 Boiling: 373 - ºF Freezing: 32 Boiling: 212

Question 20

Compare precision and accuracy.

Answer 20

Precision: the reliability or reproducibility of a measurement. Accuracy: how close a measurement is to the accepted value.

Question 21

Degree of Uncertainty

Answer 21

The uncertainty in a measurement depends on the skill of the person doing the measuring and the limitations of the measuring instrument.

Question 22

Metric units for: 1) Temperature 2) Electric Current 3) Amount of Substance

Answer 22

1) Celsius or Kelvin 2) ampere 3) mole

Question 23

Physical Properties

Answer 23

Properties which can be observed without changing the substance into something different (Color, ode or, hardness, …)

Question 24

Chemical Properties

Answer 24

Properties observed when a substance changes into a new substance (Iron forms rust in air & water; gasoline burns in oxygen)

Question 25

Physical Properties

Answer 25

Substance changes form or sate only. Boiling, melting, freezing, dissolving, grinding, cutting.

Question 26

Chemical Properties

Answer 26

New substances are formed with new chemical and physical properties. Oxygen & hydrogen form water; sodium & chlorine form salt (sodium chloride).

Question 27

List the three states of matter in order of increasing density.

Answer 27

Gas: neither definite in shape nor volume. Liquid: definite volume; takes shape of container. Solid: definite size and shape.

Question 28

Density. General equation and three standard units.

Answer 28

Mass of a unit volume of a substance. Density = mass/volume g/mL g/L kg/L

Question 29

Calculate the density of a rock with mass of 10g and volume of 5ml.

Answer 29

Density = mass/volume Density= 10g/5ml = 2g/ml

Question 30

J.J Thmson Discovery

Answer 30

Plum pudding or the existence of sub atomic atoms

Question 31

J.J Thomson Experiment

Answer 31

The Cathode Ray experiment observed cathode rays being negatively charged magnet.

Question 32

J.J Thomson conclusion

Answer 32

Atoms have small particles.

Question 33

Robert Milikan Discovery

Answer 33

the exact amount of negative charge possessed by a electron.

Question 34

Robert Milikan Experiment

Answer 34

The oil drop experiment (observe charged drops of oil as they fell through charged plate.)

Question 35

Robert Milikan conclusion

Answer 35

Used Thomson mass to charge ratio to solve for both the mass the electron. Nice One, Buddy

Question 36

Ernest Rutherford discovery

Answer 36

The Existence of an atomic nucleus, Which consists of protons.

Question 37

Ernest Rutherford Experiment

Answer 37

The gold foil experiment observed the deflection of positively charged dense, positively charged center of the atom.

Question 38

Ernest Rutherford Conclusions

Answer 38

Most of the atom's mass is contained in a dense, positively charge orbited by electrons.

Question 39

Atomic Weight

Answer 39

Is the average natural atomic Mass

Question 40

Mass spectrometer

Answer 40

Measures the mass to charge ratio

Question 41

> The Atomic Number Tells the number of---------- >

Answer 41

Protons  

Question 42

The Mass Number tells the # of ------------

Answer 42

Neutrons  

Question 43

Atomic Number

Answer 43

The number of Protons

Question 44

Isotope

Answer 44

Same element only differing in its element.

Question 45

S Oribitals

Answer 45

1 Energy Level Are spherical

Question 46

P Orbitals

Answer 46

Are Peanut shaped 3 per energy level

Question 47

D Oribituals

Answer 47

Double Peanut Shape 5 Energy per level

Question 48

F Orbitals

Answer 48

Are Crazy Lookin 7 per energy level

Question 49

Solids

Answer 49

Are Definite and compressible

Question 50

Hypothesis

Answer 50

The intial or tentative explanation of an observation

Question 51

Going Left of the Periodic table ------------ ionization.

Answer 51

Decreases

Question 52

Ionic Bonds

Answer 52

Metal and nonmetal (opposite Attract) Example: NaCl

Question 53

Covalent Bonds

Answer 53

Elements that are near each other( Non metal & Non Metal)

Question 54

Bisulfate

Answer 54

HSO(4) -1

Question 55

Cynaide

Answer 55

CN -1

Question 56

Perchlorate

Answer 56

ClO(4) -1

Question 57

Thiocyanate

Answer 57

SCN -1

Question 58

Hydrogen Phosphate

Answer 58

HPO(4) -2

Question 59

Ammonium

Answer 59

NH(4) + 1

Question 60

Oxalate

Answer 60

C(2)O(4) -2

Question 61

Law

Answer 61

A concise Verbal Statement or Mathematical expression

Question 62

The seperation process that depends on differing abilities of substances to form gasses is called.

Answer 62

Distillation

Question 63

Physicist Ernest Rutherford developed the nuclear model of the atom after performing an experiment where he bombarded gold foil with alpha radiation. According to his experiment, which of the following fills up the majority of the volume of an atom?

Answer 63

Empty space

Question 64

Sometimes, when Sidney eats too many beans, he experiences an unpleasant build-up of methane gas. Methane is a chemical compound with the chemical formula CH4s, where the atomic ratio of carbon to hydrogen is 1 : 4. Chemists discovered a sample of methane that contains 7.342 g of C and 2.445 g of H. Which of the following mathematical expressions determines the atomic mass of C relative to H? ## Footnote (A) 7.342g/4(2.445g) (B)4(2.445g)/7.342g (C)4(2.445 g) × 7.342 g (D)4(7.342g)/2.445g (E)4(7.342 g) × 2.445 g

Answer 64

(d)

Question 65

Si Unit for Velocity

Answer 65

M/S

Question 66

NaClO Name The Compound

Answer 66

Sodium Hypochlorite Ionic

Question 67

What is the formula for chromium (III) phosphate?

Answer 67

CrPO4

Question 68

What is the formula of calcium sulfate

Answer 68

CaSO4

Question 69

Sodium Nitrate

Answer 69

NaNO(3)

Question 70

Lead(2)Oxide

Answer 70

PbO

Question 71

Mercury (1) Sulfate

Answer 71

Hg(2)S

Question 72

Barium Chromate

Answer 72

BaCrO(4)

Question 73

Cerium Nirtrate

Answer 73

Ce(NO(2))4

Question 74

Sulfur Dioxide

Answer 74

SO(2)

Question 75

Diflourine Monoxide

Answer 75

Fl(2)O

Question 76

6.3\*3.25 sid figs

Answer 76

20

Question 77

True OR F alse LIght is Matter

Answer 77

False

Question 78

What Is a Physical state in which matter has no specific shape but does have a specific volume.

Answer 78

Liquid

Question 79

Is Gas significantly compressible True or false

Answer 79

True

Question 80

11.5\*8.78

Answer 80

101