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SEMESTER 1 REVIEW Intro to Chem/Physics

Total questions: 101

Worksheet time: 3hrs 16mins

Name
Class
Date
1.
If you spill or break something during an experiment, what is the FIRST thing you should do?
a)
Tell the teacher.
b)
Clean it up. 
c)
Cover it with a paper towel.
d)
Leave it for someone else.
2.
Which of the following should NOT be worn during a lab investigation?
a)
Flip flops
b)
Loose, long hair
c)
Dangling jewelry
d)
All of the above
3.

You are heating a substance in a test tube. Always point the open end of the tube

a)

towards your body

b)

toward your lab partner

c)

towards another classmate

d)

away from you and others

4.

Approved eye protection devices (such as goggles) are worn in the laboratory

a)

to avoid eye strain

b)

to improve your vision

c)

so that you look super cool

d)

any time chemicals, heat or glassware are used

5.

Which of the following IS considered safety equipment in our classroom?

a)

Eyewash Station

b)

Safety Shower

c)

Fire Extinguisher

d)

All of the Above.

6.
What is the CORRECT procedure for students to follow if a chemical is spilled?
a)
Stand back and advise the teacher of the spill.
b)
Run madly out of the room.
c)
Splash large amounts of water onto the spill.
d)
Immediately ask to go to the restroom.
7.

When smelling a chemical or liquid, it is best to:

a)

take a deep breath.

b)

pour it on your clothes.

c)

waft the fumes gently towards you.

d)

taste it as well.

8.

What is the correct disposal for broken glass?

a)

sink, rinse with plenty of water

b)

trash can

c)

broken glass box

d)

heavy duty hallway trash can

9.

Which one of these is NOT TRUE with regards to using thermometers?

a)

Using it as a stirring rod runs the risk of breaking.

b)

Placing thermometer in middle of liquid will get best temperature.

c)

Handle it with care, it’s made of glass.

d)

Allow thermometer to rest on bottom when measuring temperature.

10.

Which is correct to remember for lab safety?

a)

Assume the lab and lab materials are dirty, therefore you will be extra safe.

b)

It is safe to assume lab and lab materials are clean if the previous class did clean up.

c)

Glassware that is cracked will never break.

d)

When working with chemicals, you do NOT have to wear goggles if you have eye glasses on.

11.
Which of the following should NOT be worn during a lab investigation?
a)
Flip flops
b)
Loose, long hair
c)
Dangling jewelry
d)
All of the above
12.

What is always the very last thing you should do when leaving the science lab?

a)

clean up your work space

b)

put away materials

c)

wash your hands

d)

wipe off all surfaces

13.
Identify the equipment shown here:
a)
concave glass
b)
convex glass
c)
watch glass
d)
glass plate
14.
Identify the equipment shown here:
a)
grinder
b)
evaporating dish
c)
mortar and pestle
d)
crucible
15.
Identify the equipment shown here:
a)
crucible
b)
evaporating dish
c)
mortar and pestle
d)
bowl
16.
Identify the equipment shown here:
a)
crucible holder
b)
wire gauze
c)
clay triangle
d)
test tube holder
17.

Name this lab apparatus:

a)

forceps

b)

funnel

c)

mortar and pestle

d)

clay triangle

18.

What is measured with a graduated cylinder?

a)

Passage of time

b)

Distance from one thing to another

c)

Weight of an object

d)

Volume of liquid

19.

This device is called a __________________.

a)

Ring stand

b)

Graduated cylinder

c)

Bunsen burner

d)

Striker

20.

To be read accurately, one must place a graduated cylinder on a flat surface and measure at the bottom of the _______________ curve.

a)

Concave curve

b)

Capillary

c)

Meniscus

d)

Bubble Curve

21.

How much liquid is in this graduated cylinder?

(Click on the image to enlarge it.)

a)

5.0 cm

b)

6.0 cm

c)

5.0 mL

d)

6.5 mL

22.

What is used to hold test tubes?

a)

Test tube rack

b)

Test tube holder

c)

Test tube clamp

d)

Drying rack

23.

Which of these materials we used in our separation lab dissolved in liquid to form a solution?

a)

Salt

b)

Sand

c)

Sugar

d)

Koolaid

24.

To separate a mixture of sand and salt water what separation method is used?

a)

Filtering

b)

Distillation

c)

Boiling

d)

Evaporation

25.

To separate a mixture of salt and water what separation method is used?

a)

Filtration

b)

Distillation

c)

Using a Bar Magnet

d)

Evaporation

26.

Which of the following would be used to boil away water?

a)
b)
c)
d)
27.

What lab procedure is being shown here?

a)

cutting glass tubing

b)

bending glass tubing

c)

lighting a burner

d)

filtering into filter paper

28.

One end of this piece of lab equipment is a stirring rod, but the black end is known as a .....

a)

rubber tip

b)

rubber spatula

c)

rubber fireman

d)

rubber policeman

29.

What is the volume of Jade sample?

a)

10.5 mL

b)

15.0 cm3

c)

20.0 mL

d)

25.0 cm3

30.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
31.
What units are used to measure Density?
a)
cm3/g
b)
g
c)
g/cm3
d)
cm3
32.
A crayon has a mass of 10g and volume of 5 mL. What is the density?
a)
30 g/mL
b)
15 g/mL
c)
1 g/mL
d)
2 g/mL
33.
Which lab tool might you use to measure the volume of a liquid?
a)
electric scale
b)
bunsen burner
c)
test tube
d)
graduated cylinder
34.

A sample of silver is put into 10 ml of water. If the water rises to 15 ml when the a large glass bead is added, what is the density of the glass bead if it has a mass of 20.0 g?

a)

4 g/ml

b)

20 g/cm3

c)

3.2 g/ml

d)

0.25 g/ml

35.

What is the density of water?

a)

10 g/mL

b)

0.1 g/mL

c)

1.0 g/mL

d)

100 g/mL

36.

When does an object float?

a)

If it has a density of LESS than 1 g/mL.

b)

If it has a density of MORE than 1 g/mL.

c)

If it has a density of EXACTLY 1 g/mL.

d)

None of the above are correct.

37.

The diagram shows a rectangular block that has a mass of 120 g. The dimensions are shown.

What is the density of the block?

a)

3 g/cm3

b)

16 g/cm3

c)

40 g/cm3

d)

0.33 g/cm3

38.
a)
Periods
b)
Groups
39.
a)
Periods
b)
Groups
40.

Look at a copy of the periodic table. What element is in the 4th period and 5th group?

a)

Magnesium

b)

vanadium

c)

niobium

d)

titanium

41.
a)
Same group
b)
Same period
42.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
43.

Group 18 elements are known as the _____ _____ and have full valence energy level meaning 8 electrons in outer level.

a)

alkali metals.

b)

alkaline Earth metal.

c)

noble gases.

d)

halogens.

44.

What is the atomic number of Nickel?

a)

~30

b)

30

c)

28

d)

58.693

45.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
46.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

47.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
48.

What is one way Neutrons are different from electrons?

a)

they both are negative

b)

neutrons have no charge, while electrons have a negative charge

c)

Both are in the nucleus( center of atom)

d)

Electrons are inside nucleus and neutrons are outside the nucleus.

49.
Which is an electron?
a)
A
b)
B
c)
C
50.
Ionic compounds are bonds between
a)
Metals and Metals
b)
Metals and Nonmetals
c)
Nonmetals and Nonmetals
d)
None of the above
51.
What is a cation?
a)
positive ion
b)
Neutral atom
c)
Two additional protons
d)
negative ion
52.

The nucleus contains

a)

electrons

b)

all subatomic particles

c)

protons

d)

protons and neutrons

53.

What is the atomic number of this atom?

a)

2

b)

4

c)

6

d)

8

54.

How many electrons can go in the first energy level?

a)

2

b)

8

c)

18

d)

32

55.

How many electrons can go in the second (2nd) energy level?

a)

2

b)

8

c)

18

d)

32

56.

The innermost energy level has a maximum of how many electrons?

a)

1

b)

2

c)

6

d)

8

57.

What is a valence electron?

a)

Electrons in the first energy level

b)

Electrons in the second energy level

c)

Electrons in the outermost level

d)

Total number of electrons

58.

How many valence electrons?

a)

2

b)

4

c)

6

d)

8

59.

How many valence electrons?

a)

2

b)

5

c)

6

d)

8

60.

The cation Rb+ has

a)

Had nothing happen to it

b)

Gained 1 electron

c)

Lost 1 electron

d)

Become negative

61.

Describe the anion S2-

a)

Sulfur that lost 2 electrons

b)

Sulfur that gained 2 electrons

c)

Selenium that gained 2 electrons

d)

Strontium that gained 2 electrons

62.
K +  and  N-3
a)
KN
b)
KN3
c)
K3N3
d)
K3N
63.

The chemical formula for an ionic compound of potassium K+ and oxygen O-2 is

a)

KO.

b)

K2O.

c)

K2O2.

d)

KO2.

64.
How do the following two elements bond together?
Al3+  O2-         
a)
AlO
b)
Al2O3
c)
Al3O6
d)
Al3O2
65.
What formula results when Ca+2  and  Br- ions bond?
a)
Ca2Br2
b)
CaBr
c)
Ca(br)2
d)
CaBr2
66.
Na2S
a)
Sodium Sulfide
b)
Sodium Sulfate
c)
Sodium Sulfite
d)
Disodium Sulfide
67.

Name this compound:  LiBr

a)

Lithide bromine

b)

Bromine lithide

c)

Lithium bromate

d)

Lithium bromide

68.
Why do ionic bonds form?
a)
so the number of protons equals the number of electrons
b)

because opposite charges attract

c)
so an atom can become unstable
69.

If a magnesium atom has 12 protons (+) and 10 electrons (-), what is it's charge?

a)

Mg6+

b)

Mg2+

c)

Mg2-

d)

Mg10-

70.

This could be the dot diagram of

a)

Mg

b)

C

c)

S

d)

N

71.

How many dots would you put around carbon, a group 14 element?

a)

4

b)

6

c)

8

d)

18

72.

Who discovered that the atom had an small, dense, positively charged center?

a)

Ernest Rutherford

b)

J.J Thomson

c)

Robert Millikan

d)

John Dalton

73.

What is Neils Bohr's contribution to the atomic theory?

a)

Discovered the electron

b)

Created a model of the atom with electrons moving around the nucleus in a fixed orbits

c)

Discovered that the proton had a positive charge

d)

Believed that atoms of a given element are identical

74.
Who's model is this?
a)
Thomson
b)
Rutherford
c)
Democritus
d)
Bohr
75.
Rutherford’s experiment determined that the nucleus of an atom is tiny, dense and  ______ charged. 
a)
neutrally
b)
negatively
c)
positively
76.
The _____________ is the number of protons and neutrons in an atom.
a)
Atomic Mass
b)
Atomic Symbol
c)
Atomic Number
d)
Atomic charge
77.

Isaiah needs 10 ml of liquid for a lab. The teacher has a container of the freshly prepared chemical for all the classes to use. But, when he goes to get the 10 ml, he accidentally gets too much liquid. Which of the following is CORRECT?

a)

Don't waste it so pour the excess chemical back into the original container.

b)

Sorry but the excess chemical will have to be discarded in the trash or poured down the sink.

c)

Share the excess chemical with the next lab group.

78.

What lab procedure is shown here?

a)

lighting a burner

b)

cutting and bending glass tubing

c)

fire polishing the sharp ends

d)

evaporating a liquid

79.

The number of energy levels correspond to the row or period on the periodic table. What period is this element located in?

a)

1

b)

2

c)

3

d)

4

80.

The elements in this family found in 1A are soft, silvery, and very reactive with water.

a)

Alkaline Earth Metals

b)

Alkali Metals

c)

Transition Metals

d)

Lanthanides

81.

What group is the family found? These halogens are very reactive and almost have full outer number of 8 electrons.

a)

1

b)

2

c)

16

d)

17

82.
Argon (Ar)
a)
alkali metal
b)
alkaline earth metal
c)
halogen
d)
noble gas
83.

These elements have properties of both metals and nonmetals.

a)

Alkali

b)

Halogens

c)

Nonmetals

d)

Metalloids

84.
Which is an alkaline earth metal?
a)
Calcium
b)
Rubidium
c)
Carbon
d)
Iodine
85.
Which of these is a property of metals?
a)
It's malleable
b)
It can't conduct electricity
c)
They are used in food
d)
It's very brittle
86.

I was the Russian credited with arranging the first periodic table. Who am I?

a)

Henry G.J. Mosely

b)

Albert Einstein

c)

Dmitri Mendeleev

d)

Niels Bohr

87.

I am a British scientist who came up with today's periodic table of elements that is based on ATOMIC NUMBER. Who am I?

a)

Henry G.J Mosely

b)

J.J Thomson

c)

Albert Einstein

d)

Dmitri Mendeleev

88.

I am shiny. I am malleable. I am a good conductor. What am I?

a)

Metal

b)

Nonmetal

c)

Metalloid

89.

The elements to the left of the staircase are called

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

90.

An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?

a)

Gain 5

b)

Lose 3

c)

Nothing

91.

How do covalent bonds form?

a)

By donating and receiving valence electrons between atoms.

b)

Scientists still aren't sure.

c)

Opposite slight charges attract each atom in the compound.

d)

Sharing valence electrons between atoms

92.

What two types of atoms make a covalent bond?

a)

2 Nonmetals

b)

1 Metal and 1 Nonmetal

c)

2 Metals

d)

2 Noble Gases

93.

Ionic Bonds

a)

metal with nonmetal

b)

nonmetal with nonmetal

94.

This is the displayed formula for what covalent compound?

a)

Water

b)

Hydrogen peroxide

c)

Hydrogen oxide

d)

Ethanol

95.

Chlorine is a diatomic element which means in nature, it is found in two's. (Cl2) Chlorine shares one pair of electrons to make sure each atom complete the octet rule. This creates a...

a)

single bond

b)

double bond

c)

triple bond

96.

Oxygen is a diatomic element which means in nature, it is found in two's. (O2) Oxygen shares two pairs of electrons to make sure each atom completes the octet rule. This creates a...

a)

single bond

b)

double bond

c)

triple bond

97.

Nitrogen is a diatomic element which means in nature, it is found in two's. (N2) Nitrogen shares three pairs of electrons to make sure each atom completes the octet rule. This creates a...

a)

single bond

b)

double bond

c)

triple bond

98.

How many pairs of valence electrons are being shared in a single water molecule?

a)

0 pair - 0 valence electrons

b)

1 pair - 2 valence electrons

c)

2 pair - 4 valence electrons

d)

3 pair - 6 valence electrons

99.

What type of bond will this compound likely form H-Cl?

a)

Ionic compound

b)

Covalent compound

c)

Metallic compound

100.
Which of the following is NOT considered a diatomic element?
a)
Carbon
b)
Nitrogen
c)
Chlorine
d)
Iodine
101.
What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force

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