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Q4 Week 6 - Chemistry Review

Total questions: 62

Worksheet time: 2hrs 33mins

Name
Class
Date
1.

Choose all the items that are elements.

a)

NaCl (table salt)

b)

Sulfur

c)

O2

d)

Water

e)

Air

2.

Choose all of the items that are compounds.

a)

NaCl (table salt)

b)

Sulfur

c)

O2

d)

H2O

e)

Air

3.

Choose all of the items that are mixtures

a)

NaCl (table salt)

b)

Sulfur

c)

O2

d)

tap water

e)

Air

4.

Which element is similar to Li?

a)

Be

b)

K

5.

Which element is similar to Mg?

a)

Ca

b)

B

6.

Which element is similar to B?

a)

C

b)

Al

7.

Which element is the least reactive?

a)

Li

b)

Ne

c)

B

d)

C

8.

Students in Mrs. Clark's science class are investigating a substance that has the following properties

-shiny

-bends easily

-hard, not easily broken


Based on these properties how would you classify the substance?

a)

metal

b)

nonmetal

c)

metalloid

9.

Rows in the periodic table are called (a)  

Columns in the periodic table are called ​ (b)  

Choose from the below words
period
group
10.

Elements in the periodic table are sorted by:

a)

Increasing atomic number

b)

Increasing atomic mass

c)

Alphabetical order

d)

Increasing number of valence electrons

11.

Isotopes are atoms of the same element with a different number of:

a)

Protons

b)

Electrons

c)

Valence electrons

d)

Nucleus

e)

Neutrons

12.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
13.
How many Oxygen are in H2O?
a)
1
b)
2
c)
0
d)
4
14.
How many Magnesium are in 10MgCl2?
a)
10
b)
5
c)
20
15.

Physical or chemical?

a)

Physical

b)

Chemical

16.

Physical or chemical?

a)

Physical

b)

Chemical

17.

Physical or chemical?

a)

Physical

b)

Chemical

18.
Density: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
19.
A pure substance that cannot be broken down into other substances by chemical or physical means. 
a)
compound          
b)
atom
c)
mixture 
d)
element
20.

Which of these is an element?

a)

Salt (NaCl)

b)

Water (H20)

c)

Oxygen (O)

d)

Carbon Dioxide (CO2)

21.

Which of these is a compound?

a)

Aluminium (Al)

b)

Carbon Dioxide (CO2)

c)

Nitrogen (N)

d)

Sand

22.
Jorge prepared a drink and salad for dinner. The chart lists the ingredients for both.
Using the information in the chart, which statement is the BEST description of the drink and salad?
a)
The salad and fruit drink are both mixtures.
b)
The salad and the fruit drink are both solutions.
c)
The fruit drink is a mixture because the ingredients can't be separated.
d)
The salad is a solution because the ingredients can't be separated.
23.

Which of the following is classified as a pure substance?

a)

Lemonade

b)

Fruit punch

c)

ketchup

d)

Helium

24.
A mixture that is uniform and well mixed is _____.
a)
homogeneous
b)
hetergeneous
c)
pure substance
d)
compoud
25.

Which one of these is considered a SOLUTE?

a)

Salt

b)

Water

c)

Salt Water

26.

From the diagram in the previous slide which is solvent?

a)

Salt

b)

Water

c)

Salt Water

27.

Which one of these is considered a SOLUTE?

a)

Salt

b)

Water

c)

Salt Water

28.

From the diagram in the previous slide which is solvent?

a)

Salt

b)

Water

c)

Salt Water

29.

From the diagram in the previous slide which is solution?

a)

Salt

b)

Water

c)

Salt Water

30.

Which solution fits these properties?

1.Has a lot of solute in it

2.Can dissolve a little more solute


(use lowercase letters only)

(a)  

31.

Which solution fits these properties?

1.Has a lot of solute in it

2.Can dissolve a little more solute


(use lowercase letters only)

(a)  

32.

Define the term insoluble.

a)

Can dissolve in water.

b)

Cannot dissolve in water.

c)

Partially dissolves in water.

33.

Which factor affecting solubility is shown in the picture?

a)

temperature

b)

height

c)

stirring

d)

particle size

34.

Which factor is shown in the picture?

a)

temperature

b)

particle size

c)

stirring

d)

use of spoon

35.

Why do sugar particles dissolve faster in hot water?

a)

water particles move slow

b)

water particles move fast

c)

water particles settle down

d)

water particles stay on top

36.

How does particle size affect solubility?

a)

bigger particles dissolve faster

b)

smaller particles can occupy the space in water faster

c)

bigger particles spread faster than smaller particles

37.

What are the factors that affect solubility?

a)

rate of stirring

b)

particle size

c)

temperature

d)

all of these

38.

Which of the following does not affect solubility of solutes?

a)

Tempearture

b)

Color

c)

Size particles

d)

Kind of solute

39.
What Is Matter?
a)
Anything That has weight and takes up space.
b)
Anything that you can see or taste.
c)
What you can touch.
d)
you and go throught this.
40.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
41.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
42.
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
a)
sublimation
b)
condensation
c)
evaporation
43.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
44.
Which line segment demonstrates vaporization occurring?
a)
B-C
b)
C-D
c)
D-E
d)
E-F
45.
A substance's heating curve is shown in the graph.  What is its boiling point?
a)
100 C
b)
60 C
c)
80 C
d)
20 C
46.

What state/phase is the object likely from points A to B?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

47.

Is the substance gaining or losing energy?

a)

Gaining

b)

Losing

48.

Use the graph below to answer this question. Which phase change is taking place if the substance is losing energy from point C to point B?

a)

melting

b)

freezing

c)

evaporation

d)

condensation

49.
How long does it take this substance to change from a liquid to a gas?
a)
1 minute
b)
2 minutes
c)
10 minutes
d)
15 minutes
50.

How can you determine the melting or freezing point of a substance when looking a phase change graph?

a)

The graph flattens out at the melting/freezing point

b)

The graph slants upwards at the melting/freezing point

c)

The graph slants downwards at the melting/freezing point

51.

Which solute is the most soluble at 10 ⁰C?

a)

KI

b)

NH3

c)

KClO3

d)

NH4Cl

52.

How many grams of SO2 can dissolve at 50 ⁰C?

a)

5 g

b)

10 g

c)

20 g

d)

39 g

53.

The (a)   contains all of the protons and neutrons.

54.

A neutrons charge is (a)   .

55.

The mass of an electron is ​ (a)  

Choose from the below words
almost zero
1 amu
56.

The mass of a proton is ​ (a)  

Choose from the below words
1 amu
almost zero
57.

The mass of a neutrons is ​ (a)  

Choose from the below words
1 amu
almost zero
58.

What does the Bohr Model represent?

a)

The structure of molecules

b)

The structure of the Solar System

c)

The structure of an atom

d)

The structure of East Hills

59.

What is a valence electron?

a)

Electrons in the first energy shell

b)

Electrons in the second energy shell

c)

Electrons in the outer shell

d)

Total number of electrons

60.
The nucleus of an atom can be described as:
a)
spacious and negatively charged
b)
dense and positively charged
c)
spacious and positively charged
d)
dense and negatively charged
61.

Match the terms to each definition.

a)

Abbreviation of element name

1.

Chemical Symbol

b)

Sum of protons and neutrons

2.

Mass Number

c)

Atom identity equal to number of protons

3.

Atomic Number

d)

Equal to the atomic number

4.

Proton

e)

Added to protons to get mass number

5.

Neutron

62.

What is the atomic number of Fe?

a)

62

b)

56

c)

65

d)

26

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