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Unit 5: Properties of Materials (pH and Metal/Nonmetal)

Total questions: 32

Worksheet time: 1hrs 4mins

Name
Class
Date
1.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-5
d)
1-20
2.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
3.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
4.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
d)
Blood
5.
Complete the sentence.
A substance that is more basic has a _____ pH than a substance that is acidic.
a)
lower
b)
higher
c)
the same
d)
none of the above
6.

In a test of pH levels, a baking soda has a pH of 9 and bleach has a pH of 12. What is true about there relationship?

a)

Both of the solution are Bases

b)

Both of the solution are Acids

c)

The Baking soda is an acid and the Bleach is a base

d)

The baking soda is a base and the Bleach is an Acid.

7.

What does pH measure?

a)

the amount of hydrogen (H+) ions

b)

the amount of hydroxide (OH-) ions

c)

amount of water

d)

all of the above

8.

Which of the following is the strongest acid?

a)

1

b)

5

c)

3

d)

8

9.

Which of the following is the strongest base?

a)

4

b)

14

c)

7

d)

15

10.

how does alkali change litmus paper?

a)

red to blue

b)

blue to red

c)

blue to blue

d)

red to red

11.

how does an acid change litmus paper ?

a)

red to blue

b)

blue to red

c)

red to red

d)

blue to blue

12.

What colours do we see with universal indicator?

a)

red - orange

b)

colourless - pink

c)

red - orange - green - blue

d)

red - blue

13.
Bases will turn litmus paper __________, while acids will turn litmus paper __________.
a)
blue.....red
b)
red.....blue
c)
pink.........colourless
d)
colourless..........pink
14.
An indicator will ______________ when it is in contact with an acid or base
a)
Bubble
b)
Form a new substance
c)
Change color
d)
Stay the same color
15.
How would you classify the substance being tested?
a)
Acid
b)
Base
c)
Both
d)
Neither
16.
What does ductile mean?
a)
electricity flows easily
b)
quacks like a duck
c)
can be drawn into a wire
d)
able to bend
17.
What side of the periodic table are nonmetals on?
a)
left
b)
right 
c)
top
d)
bottom
18.
What side of the periodic table are metals on?
a)
left
b)
right
c)
top
d)
bottom
19.
How would this element be classified?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Metamorphic
20.

Metals can only be melted at very high temperatures

a)

True

b)

False

21.

Is being brittle a property for:

a)

Metals

b)

Non Metals

22.

Good conductor of heat

a)

Metal

b)

Non Metal

23.
At room temperature metals are ____________.
a)
plasma
b)
gases
c)
liquid
d)
solid
24.

Allows heat or electricity to go through

a)

insulator

b)

conductor

c)

luster

d)

ductile

25.

a)

A

b)

B

c)

C

d)

D

26.

Alloy is a ...

a)

A chemical compound with combination between metal and non-metal

b)

A salt contain of two or more elements where the main element is non-metal

c)

Mixture of two or more elements where the main element is metal

27.

Brass alloy contain copper and

a)

Zinc

b)

Tin

c)

Aluminium

d)

Magnesium

28.

Bronze brass contain copper and

a)

Zinc

b)

Tin

c)

Magnesium

d)

Antimony

29.

Steel generally speaking is made of

a)

iron and carbon

b)

copper and iron

c)

tin and carbon

d)

aluminum and nickel

30.

Why do jewelers not create jewelry with pure gold, silver, or copper?

a)

It is a soft metal, so it will rub or scratch away over time.

b)

It will not be shiny.

c)

It is impossible to find a pure form of these metals.

d)

It is too hard to shape into a design.

31.

Airplanes are made of pure aluminium.

a)

True

b)

False

32.

Many alloys are softer than the elements that are in them.

a)

True

b)

False

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