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19 questions
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
Which of these is a property of acidic solutions?
they taste sour
they feel slippery
they are in many cleaning products
they taste bitter
Bases turn red litmus paper _________.
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
An acid
is a substance that releases H+ ions when dissolved in water
is a substance that does not release any ions when dissolved in water
is a substance that releases OH- when dissolved in water
releases an equal amount of OH- and H+ ions when dissolved in water
From which point to which point in the pH scale is Base
7.1- 14
0- 6.9
6.2- 9.1
12- 14
Reaction between acid and alkali producing salt and water:
Combustion
Neutralization
Precipitation
Decomposition
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
The taste of acids is...
bitter and sweet
sweet and salty
slty
sour
ACID will change BLUE litmus paper to
red
blue
yellow
green
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