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Physical And Chemical Properties/Changes, Acids And Bases And Chemical Equations
Test Description: Quiz on acids, bases, chemical equations
Instructions: Answer all questions to get your test result.
1) An unidentified substanstance has a sour taste. The pH of the substance is most likely a
A
seven
B
above 7
C
below 7
D
zero
2) Bleach, Detergent, Ammonia: What property do all three of these common household substances have in common?
A
They all taste sour
B
They all are acidic
C
They all have a pH above 7
D
They all have a pH below 7
3) Reactant yields Product If there are 4 grams of reactant, how many grams of product are produced by the chemical reaction?
A
4 grams
B
2 grams
C
0 grams
D
8 grams
4) 4Fe + 3O2 → 2Fe2O3 Iron combines with oxygen to form rust. Given the chemical reaction, how many grams of rust would be produced if 3 grams of reactants were consumed?
A
3 grams
B
1 grams
C
7 grams
D
0 grams
5) We would expect the acid-base indicator, phenolphthalein, to be what color in an ammonia solution which has a pH of 11?
A
blue
B
red
C
magenta
D
clear
6) During science class Billy used litmus paper to determine the pH of an unknown liquid. The blue litmus paper turned red but there was no change in the color of the red litmus paper. The liquid Billy tested is probably
A
A pH of 7
B
A base
C
An acid
D
neutral
7) A reaction between an acid and a base is called a(n) ________________ reaction.
A
redox
B
hydro
C
ionization
D
neutralization
8) K2O + H2O → KOH What, if anything, should be done to balance this chemical equation?
A
Nothing. It is balanced.
B
Put a 2 in front of the KOH.
C
Put a 4 in front of the KOH.
D
Put .5 in front of both K2O and H2O.
9) Pepsi Vinegar Orange Juice What property do all three of these common household substances have in common?
A
They all taste bitter
B
They are all acidic
C
They all turn litmus paper blue
D
They all have a pH above 7
10) Lemon Juice Tums (antacid) Water: Put all of the above household items in order from lowest to highest pH.
A
Lemon juice, water, Tums
B
Water, Lemon Juice, Tums
C
Water, Tums, Lemon Juice
D
Tums, water, lemon juice
11) Oven cleaner is a highly caustic chemical that reacts with baked on foods. It is dangerous to the touch and has a very slippery feel. What is the likely pH of oven cleaner?
A
below 4
B
around 7
C
above 10
D
between 5 and 7
12) Acids and Bases has the ability to conduct electricity.
A
True
B
False
13) What is sublimation?
A
change in state from a solid to a gas
B
change in state from a solid to a liquid
C
change in state from gas to a liquid
14) What is the formula for density?
A
Volume divided by Density
B
Mass divided by Density
C
Density times Mass
D
Mass divided by Volume
15) Denser materials will float or sink?
A
Float
B
Sink
16) Chemical properties are:
A
Acids, Bases, Indicators
B
Color change, temperature change and change in states of matter
C
Oxidation, Combustion, pH Level
17) Some physical properties are
A
Combustion, Oxidation, pH Level
B
Acids, Bases, Indicators
C
Melting Point, Density, Conductivity
18) Deposition is a change in state from a
A
Gas to a Liquid
B
Liquid to a Gas
C
Gas to a Solid
19) Oxidation is the ability to
A
Bend
B
Break
C
Burn
D
Rust
20) Combustion is the ability to
A
Rust
B
Bend
C
Break
D
Burn
*select an answer for all questions
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