Chapter 01 – 5e
1) A ________ change converts one material to another.
2) The measurement 0.030500 m has ________ significant figures.
3) The measurement 4008 L has ________ significant figures.
4) The measurement 32.0 m has ________ significant figures.
5) The measurement 0.0002 g has ________ significant figures.
6) The measurement 9.0 x 103 km has ________ significant figures.
7) When the measurement 340,942 s is rounded to two significant figures, the value is
properly reported as ________.
8) To use conversion factors to solve a problem, set up the problem with any unwanted unit
in the numerator of one term and the ________ of another term, so that unwanted units cancel.
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,9) Every measurement is composed of a number and a ________.
10) A small banana contains 323 mg of the nutrient potassium. You would need to eat
approximately ________ small bananas in one day to obtain the recommended daily intake of
3.5 g of potassium.
11) The measurement 5342 nm is the same length as ________ cm, written in scientific
notation.
12) When crude oil leaks into the ocean from an oil tanker, the crude oil floats, because it is
________ dense than water.
13) Ultraviolet light converts oxygen gas (O2) into ozone (O3) in the stratosphere. This is an
example of a ________ change.
14) The Recommended Dietary Allowance (RDA) for iron for females is 18 mg. If each
vitamin supplement contains 0.006 g of iron, ________ vitamin supplements must be taken per
day to meet the RDA for iron.
15) The state of matter of substance that has a definite volume and takes the shape of the
container that it is in is classified as a ________.
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,16) The classic dessert, pound cake, got its name from the fact that the original recipe called
for one pound of butter, one pound of sugar, and one pound of flour. An amateur baker wanted to
test to see if the new recipe did indeed require 1 lb of sugar, so he took the mass of the 2 cups of
sugar that the recipe required and found that it had a mass of 454 g. The old recipe and the new
recipe ________ require the same mass of sugar. (do/ do not)
17) The jeweler insists that the necklace in the display case is made of pure gold. Pure gold
has a density of about 19 g/mL. If the mass of the necklace is 8.0g and the volume is 0.48 mL.
The density of the necklace is ________, so the necklace ________ pure gold. (is, is not)
18) A patient with a severe upper respiratory infection is prescribed Cephalexin, an antibiotic.
The pharmacy dispenses a total mass of 5250 mg of the antibiotic in capsule form, enough for
exactly 7 days of treatment. The patient is told to take 3 capsules per day. The mass of
Cephalexin in each capsule is ________.
19) Which is NOT an example of a pure substance?
A) sugar
B) air
C) aluminum foil
D) water
E) a block of dry ice (solid CO2)
20) Which is an example of a physical change?
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, A) the rusting of an iron nail
B) the burning of propane in a gas grill
C) baking cookies
D) polishing tarnished silver
E) melting of an ice cube in a glass of soda
21) Which of the following examples represents a chemical change?
A) the tearing of a piece of paper
B) the melting of an ice cube
C) the burning of a candle
D) the dissolving of table salt (NaCl) in water
E) the evaporation of water from a puddle
22) An unknown solid is taken to the laboratory for analysis. Which of the following
examples represents a chemical property of the unknown solid substance?
A) The density of the solid is 1.66 g/mL.
B) The melting point of the solid is 156°C.
C) The solid is soluble in water and acetone.
D) The substance is odorless in solid form.
E) The substance produces a gas when combined with NaHCO3 in water.
23) An unknown liquid is taken to the laboratory for analysis. Which of the following
examples represents a physical property of the unknown liquid substance?
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1) A ________ change converts one material to another.
2) The measurement 0.030500 m has ________ significant figures.
3) The measurement 4008 L has ________ significant figures.
4) The measurement 32.0 m has ________ significant figures.
5) The measurement 0.0002 g has ________ significant figures.
6) The measurement 9.0 x 103 km has ________ significant figures.
7) When the measurement 340,942 s is rounded to two significant figures, the value is
properly reported as ________.
8) To use conversion factors to solve a problem, set up the problem with any unwanted unit
in the numerator of one term and the ________ of another term, so that unwanted units cancel.
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,9) Every measurement is composed of a number and a ________.
10) A small banana contains 323 mg of the nutrient potassium. You would need to eat
approximately ________ small bananas in one day to obtain the recommended daily intake of
3.5 g of potassium.
11) The measurement 5342 nm is the same length as ________ cm, written in scientific
notation.
12) When crude oil leaks into the ocean from an oil tanker, the crude oil floats, because it is
________ dense than water.
13) Ultraviolet light converts oxygen gas (O2) into ozone (O3) in the stratosphere. This is an
example of a ________ change.
14) The Recommended Dietary Allowance (RDA) for iron for females is 18 mg. If each
vitamin supplement contains 0.006 g of iron, ________ vitamin supplements must be taken per
day to meet the RDA for iron.
15) The state of matter of substance that has a definite volume and takes the shape of the
container that it is in is classified as a ________.
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,16) The classic dessert, pound cake, got its name from the fact that the original recipe called
for one pound of butter, one pound of sugar, and one pound of flour. An amateur baker wanted to
test to see if the new recipe did indeed require 1 lb of sugar, so he took the mass of the 2 cups of
sugar that the recipe required and found that it had a mass of 454 g. The old recipe and the new
recipe ________ require the same mass of sugar. (do/ do not)
17) The jeweler insists that the necklace in the display case is made of pure gold. Pure gold
has a density of about 19 g/mL. If the mass of the necklace is 8.0g and the volume is 0.48 mL.
The density of the necklace is ________, so the necklace ________ pure gold. (is, is not)
18) A patient with a severe upper respiratory infection is prescribed Cephalexin, an antibiotic.
The pharmacy dispenses a total mass of 5250 mg of the antibiotic in capsule form, enough for
exactly 7 days of treatment. The patient is told to take 3 capsules per day. The mass of
Cephalexin in each capsule is ________.
19) Which is NOT an example of a pure substance?
A) sugar
B) air
C) aluminum foil
D) water
E) a block of dry ice (solid CO2)
20) Which is an example of a physical change?
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, A) the rusting of an iron nail
B) the burning of propane in a gas grill
C) baking cookies
D) polishing tarnished silver
E) melting of an ice cube in a glass of soda
21) Which of the following examples represents a chemical change?
A) the tearing of a piece of paper
B) the melting of an ice cube
C) the burning of a candle
D) the dissolving of table salt (NaCl) in water
E) the evaporation of water from a puddle
22) An unknown solid is taken to the laboratory for analysis. Which of the following
examples represents a chemical property of the unknown solid substance?
A) The density of the solid is 1.66 g/mL.
B) The melting point of the solid is 156°C.
C) The solid is soluble in water and acetone.
D) The substance is odorless in solid form.
E) The substance produces a gas when combined with NaHCO3 in water.
23) An unknown liquid is taken to the laboratory for analysis. Which of the following
examples represents a physical property of the unknown liquid substance?
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