Chapter 01 – Chemistry: The Study of Change
130. Of the following which is NOT a physical property?
131.
Select True or False: When bacteria changes milk to yogurt it is a chemical change.
132.
Select True or False: Hydrogen gas and nitrogen gas are combining to form ammonia gas is a chemical change.
Chapter 01 – Chemistry: The Study of Change
133.
Select True or False: The formation of snowflakes is a physical change.
134.
Select True or False: The corrosion of a metal is a physical change.
135.
Select True or False: The ripening of fruit is a physical change.
Chapter 01 – Chemistry: The Study of Change
136.
Select True or False: The fashioning of a piece of wood into a table leg is a physical change.
137.
Select True or False: Fermenting of grapes is physical change.
138.
Select True or False: Antifreeze boiling out of a radiator is a physical change.
139.
Select True or False: Food spoiling is a chemical change.
140.
Select True or False: Alcohol evaporating is a physical change.
141.
Select True or False: Water boiling at 100oC is a physical property.
Chapter 01 – Chemistry: The Study of Change
142.
Select True or False: Newspaper burning is an example of a physical property.
143.
In the process of fixing breakfast you:
1. break open the egg
2. fry it
3. cut the fried egg into pieces
4. cut toast in half
Which one of these is a chemical process?
Chapter 01 – Chemistry: The Study of Change
144.
Select True or False: Density is an intensive property.
145.
Select True or False: Length is an intensive property.
146.
Select True or False: Cost per unit is an intensive property.
Chapter 01 – Chemistry: The Study of Change
147.
Select True or False: Total cost is an extensive property.
148.
Select True or False: Melting point is an extensive property.
149.
Select True or False: Boiling point is an intensive property.
Chapter 01 – Chemistry: The Study of Change
150.
Select True or False: Mass is an intensive property.
151.
Select True or False: 0 K is the lowest temperature that can be attained theoretically.
152.
Select True or False: The lowest temperature that can be attained in units of C (use 3 significant figures) is 273oC.
Chapter 01 – Chemistry: The Study of Change
153.
An organic liquid has a density of 1.2 g/cm3. What is the mass of a 35.0 cm3 sample of this liquid?
154. What is the density of copper if 11.8 cm3 of copper has a mass of 105.2 g?
Chapter 01 – Chemistry: The Study of Change
155. What is the density of a salt solution if 75.0 mL of the solution has a mass of 32.0 g?
156.
Select True or False: The weight of a body varies according to the force of gravity exerted on the body.
157.
Select True or False: The mass of a body varies according to the force of gravity exerted on the body.
Chapter 01 – Chemistry: The Study of Change
158.
Select True or False: The SI base unit of time is the hour.
159.
Select True or False: 20C is colder than 40F.
160.
Select True or False: 16 megagrams (Mg) is equal to 1.6 107 g.
Chapter 01 – Chemistry: The Study of Change
161.
Select True or False: The number 30.40 contains three significant figures.
162.
Select True or False: The number 0.07010 contains four significant figures.
163.
Select True or False: The number 9.64000 105 contains six significant figures.
Chapter 01 – Chemistry: The Study of Change
164. An automobile engine has a piston displacement of 1,600 cm3. Express this volume in
liters.
165.
An automobile engine has a piston displacement of 1,600 cm3. Express this volume in cubic inches. (1 in = 2.54 cm)
Chapter 01 – Chemistry: The Study of Change
166.
An investor paid market price for a chunk of gold that he was told was pure. The gold bar had a mass of 440 g, but was
slightly irregular so an exact volume could not be calculated. The investor filled a large graduated cylinder with water,
immersed the chunk of gold, and observed an increase in the apparent volume of material in the graduated cylinder of 25.0
mL. Pure gold has a density of 19.3 g/cm3. What is the density of the investor’s chunk of gold?
167.
An American engineer who had been transferred to Europe was asked to build bridge pilings exactly as he had in the United
States. Each piling required 20.0 cubic yards of concrete in the United States. How many cubic meters of concrete are
required for each piling? Given: 1yd = 0.914 m.
Chapter 01 – Chemistry: The Study of Change
168.
A soft drink costs 75 cents for a 12-oz can. A two-liter bottle costs $1.25. How much more expensive is the can compared to
the two-liter bottle? (1.0 L = 1.057 qt, 1 qt = 32 oz)
169.
A person weighs 150.0 lb, and the correct dosage of a drug is given as 1.50 mg per kilogram of body weight. How many
milligrams of the drug should be given? (2.20 lb = 1 kg)
Chapter 01 – Chemistry: The Study of Change
170.
An archeologist finds a huge monolith in the desert. In order to estimate the weight of this object; he estimates the
dimensions of the monolith and removes some chips from the rock with
his hammer, collecting the following data:
dimensions of the monolith = 1.5 m 5.2 m 13 m
mass of rock chips = 41.73 g
volume of rock chips = 15.2 cm3
Determine the mass of the monolith in pounds, assuming it is of uniform composition. (1 lb = 453.6 g)
171.
An excavator is preparing to dig a basement for a new house. Part of his contract reads that he must dispose of all the dirt he
removes while digging the basement in an EPA approved landfill. He will dig a hole that is 40 feet wide by 50 feet long and
7.5 feet deep. He first uses his shovel and scoops up 1.00 kg of dirt, and then determines that the dirt as a volume of 600 cm3.
The excavator knows that his dump truck can only carry 8,000 kg of dirt. How many dump-truck loads will it take to haul the
dirt away?
Chapter 01 – Chemistry: The Study of Change
172.
What will be the cost of gasoline for a 3,700-mile trip in a car that gets 23 miles per gallon if the average price of gas is $3.90
per gallon?
173.
What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of
gas is $3.79 per gallon?
Chapter 01 – Chemistry: The Study of Change
174. The density of lead is 11.4 g/cm3. Express this density in pounds per cubic foot.
175. What is the mass of 1.00 dm3 of mercury? The density of mercury is 13.6 g/cm3.