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WorksheetsSolutions and PH
Total questions: 15
Worksheet time: 37mins
Name
Class
Date
1.
Which reason explains why gas bubbles are released when a carbonated beverage is opened?
a)
decreasing the pressure increases the rate of solution
b)
the solubility of a gas in a liquid decreases with decreased pressure
c)
Exposing a liquid to air causes it to become a saturated solution
d)
The solvent changes from a liquitd to a gas when the beverage is opened.
2.
Which reason explains why gas bubbles are released when a carbonated beverage is opened?
a)
decreasing the pressure increases the rate of solution
b)
the solubility of a gas in a liquid decreases with decreased pressure
c)
Exposing a liquid to air causes it to become a saturated solution
d)
The solvent changes from a liquitd to a gas when the beverage is opened.
3.
How is a dilute solution different from a concentrated solution?
a)
The dilute solution has a liquid solvent
b)
The dilute solution is at a lower temperature
c)
The dilute solution has a smoller total volume
d)
The dilute solution has less solute per volum of solvent
4.
Saltwater is an example of a solution. Compared to the salt, which term best describes the water in the solution?
a)
Solute
b)
Solvent
c)
mixture
d)
suspension
5.
Which is a homogenous mixture? And why?
a)
The soda because the concentration is the same throughout.
b)
The chex mix because the concentration can be seperated
c)
The soda because it cannot be seperated
d)
The chex mix because it is not the same throughout.
6.
Which of the following will slow the rate at which sugar dissolves in water
a)
cooling the water
b)
crushing the sugar
c)
increasing the amount of sugar
d)
increasing the temperature
7.
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)
a salt
b)
a base
c)
an acid
d)
distilled water
8.
How is a salt formed during a neutralization reaction?
a)
a hydorgen ion reacats with a hydroxide ion
b)
An acid changes to a different state of matter
c)
a metal ion takes the place of the hydrogen of an acid
d)
The water molecule breaks into hydroxide and hydorgen ions
9.
What happens to an acid when it dissolves in water?
a)
it increases the number of hydroxide ions in water
b)
It increases the number of hydrogen ions in water
c)
It produces a salt that collect at the bottom of the container
d)
It breaks water into individual atoms of hydrogen and oxygen
10.
BASE + ACID ----> SALT +?
a)
water
b)
oxygen
c)
hydrogen ion
d)
hydroxide ion
11.
How is hydorcholoric acid important to maintaining the health of the human body?
a)
It carries oxygen in teh blood to where it is needed
b)
It breaks down food so that the body can obtain nutrients
c)
It removes wastes that are produced during normal processes.
d)
It kills pathogens so that the body can protect itself from disease
12.
Which of the following is a common cause of acid rain?
a)
oil spilled into tropical ocen waters
b)
gases released when plants make food
c)
emissions produced by burning fossil fuels
d)
warm water released from nuclear power plants
13.
How does absorbing carbon dioxide gas from the atmosphere most directly affect oceans?
a)
It lowers th pH of the water
b)
It raises the temperature of
c)
It reduces the volum e of water in the oceans
d)
It increases the salt concentration of the water.
14.
How is the ph value of a solution related to its alkalinity.
a)
The lower the ph is the higher the alkalinity is
b)
the higher the ph is the higher the alkalinity is
c)
the ph value is unrelated to the solution's alkalinity
d)
The ph value is equivalent to the solutions alkkalinity
15.
Human blood is slightly basic. Where would you add human blood to the diagram?
a)
between ammonia and oven cleaner?
b)
between water and baking soda
c)
between lemon juice and vinegar
d)
between water and ammonia
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