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WorksheetsAcids and Bases
Total questions: 19
Worksheet time: 17mins
Name
Class
Date
1.
Stronger acids have a pH closer to...
a)
7
b)
0
c)
14
d)
9
2.
Weaker bases have a pH closer to...
a)
8
b)
0
c)
14
d)
4
3.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-5
d)
1-14
4.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
5.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Pure water
d)
Bleach
6.
These can burn you if they are strong enough.
a)
Acids
b)
Bases
c)
Water
d)
Acids & Bases
7.
Tastes Sour
a)
Acids
b)
Bases
c)
Salts
d)
All
8.
Why are bases useful as cleaning products?
a)
They dissolve fats and oils
b)
they are corrosive, so they eat anything
c)
they don't mix with water
d)
since bases are slippery, they slip dirt off of surfaces
9.
Acids react with
a)
water to produce bases and salts
b)
salts to produce bases and water
c)
neither bases, salts nor water
d)
bases to produce salts and water
10.
When combining an acid and a metal what gas is produced
(a)
11.
What gas is created when Hydrogen Peroxide and Calcium Carbonate are mixed?
a)
Oxygen
b)
CO2
c)
Hydrogen
d)
Helium
e)
Nitrogen
12.
In which reaction(s) is water formed
a)
HCL and NaOH
b)
HCL and CaCO3
c)
HCL and Zinc
13.
What is the Law of Conservation of mass?
a)
Mass is created in a chemical reaction
b)
Mass is created in a physical change
c)
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
d)
Mass is never created or destroyed
14.
How can you tell that a metal is reacting with water?
a)
Colour change
b)
Bright light
c)
Fizzing
d)
It gets colder
15.
How can you test to show that when a metal reacts with water, hydrogen gas is produced?
a)
Relights a glowing splint
b)
A lit splint produces a squeaky pop
c)
Puts out a burning splint
d)
Is cold to the touch
16.
What metal hydroxide is produced when magnesium reacts with water?
a)
Copper hydroxide
b)
Magnesium oxide
c)
Magnesium
d)
Magnesium hydroxide
17.
Which metal is most likely to react with water or acid?
a)
Copper
b)
Potassium
c)
Magnesium
d)
Iron
18.
What can you conclude if a metal doesn't fizz when added to water or an acid?
a)
It has low reactivity
b)
It may react with a stronger acid
c)
It has high reactivity
d)
There is no metal present
19.
A charged particle that has gained or lost electrons is called a _____.
a)
molecule
b)
ion
c)
isotope
d)
element
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