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WorksheetsAcids and Bases
Total questions: 21
Worksheet time: 2hrs 38mins
what is an Acid ?
A substance that breaks down a solution
A solution that breaks into OH-
A substance that unites solutions together
How do you identify if it is an acid ?
sour taste. It is like drinking lemon juice
it dissolves solutions
it is both sour and sweet
Sweet taste
What is pH?
the amount of acid that is in a substance
the measurement of acids and bases
measure of the hydrogen ion activity
a type of acidic substance
How does ocean acidification impact humans ?
it damages the fish we eat
it affects the oceans that we swim and get us ill
It doesn't
It affects our food chain and puts it in jeopardy
oceans are not getting affected by the increase of CO2?
True
False
What are bases ?
A substance that becomes acidic
A dissolving substance
A substance that resales hydrogen
None of these are the correct answer
How do you identify a base?
it is sweet
it is rough
both sour and slippery
None of these are the correct answer
Definition of ocean acidification?
the release of marine animals calcium
Chemicals released when marine animals die
CO2 + H2O= 2HCO3
All of the answers above
What is an Acids pH level ?
0-7
7-14
None of these
Acids and Bases are the same ?
True
False
What is the pH for bases?
0-7
7-14
none
What is the best way to stop ocean acidification?
Decrease the use of CO2
Use econ-friendly solutions
try to increase the amount of energy that you use
All of the above
What is the pH balance of a humans blood ?
between 0-5
7
10
none are correct
what is the ocean's pH level?
about 8.2
between 0-7
about 9.5
around 3.5
pH is a type of acid ?
True
False
what color does a base turn red litmus paper into?
orange
blue
purple
it doesn't change color
What are some strong acids?
Sulfuric Acid
Oxalic Acid
Acetic Acid
Hydrochloric acid
What color do acids change Blue litmus paper into?
red
orange
yellow
it doesn't change color
A high pH indicates....
A weaker Acid
A stronger Acid
A weaker Base
A stronger base
A lower pH means?
A weaker Acid
A Stronger Acid
A weaker Base
A Stronger Base
the pH scale goes form _to _
0-19
0-35
0-14
none of these
