WorksheetsSolutions and pH
Total questions: 19
Worksheet time: 18mins
A molecule, such as water, that has partially charged positive and negative areas is
neutral
universal
polar
nonpolar
What would be the best solution to add to a strong base to neutralize it?
strong acid
strong base
weak base
weak acid
Bases cause litmus paper to turn blue.
True
False
In a neutral solution the pH is always equal to ___.
7
Indicators
Sour
Bitter
Supersaturated
Acids contain high amounts of ____ ions.
Hydrogen (H+)
Indicators
Sour
Bitter
Supersaturated
A solution with a pH of ____ is a strong base.
14
Indicators
Sour
Bitter
Supersaturated
Saltwater is an example of a solution. Compared to the salt, which term best describes the water in the solution?
Solute
Solvent
mixture
suspension
A chemist is working with a liquid substance that tastes bitter, feels slippery, and conducts an electric current. Which of the following is the chemist most likely working with?
a salt
a base
an acid
distilled water
Human blood is slightly basic. Where would you add human blood to the diagram?
between ammonia and oven cleaner?
between water and baking soda
between lemon juice and vinegar
between water and ammonia
Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?
lemon juice, milk, baking soda, bleach
bleach, baking soda, milk, lemon juice
milk, lemon juice, baking soda, bleach
baking soda, bleach, lemon juice, milk
A(n) ______ is a substance with a pH less than 7
Acid
Alkaline
Base
Buffer
A base is a substance
That releases OH- ions when dissolved in water
That releases H+ ions when dissolved in water
Does not release any ions when dissolved in water
None of the above
Which of these solutions is an acid?
Dish Soap: pH of 12
Tomato Soup: pH of 4
Baking Soda: pH of 9
Drain Cleaner: pH of 14
The pH scale is a range from:
1-7
0-14
1-14
1-20
pH paper has a range of colors to represent the different pH of solutions. Examine the results (color change) of the pH paper shown in the picture. What type of substance was tested?
an acid
a base
a neutral substance
none of the above
Bases will turn litmus paper __________, while acids will turn litmus paper __________.
blue.....red
red.....blue
pink.........colourless
colourless..........pink
Many cleaning solutions are bases. Which of the following is a property of most bases?
feels slippery
white color
can only be liquid
tastes sour
ACID will change BLUE litmus paper to
red
blue
yellow
green
Kool-Aid can be used to tie dye shirts by just mixing it with hot water to make a hot Kool-Aid solution.
In the Kool-Aid solution, the Kool-Aid is the___ and the water is the ___.
element / compound
atom / molecule
reactant / product
solute / solvent
