For a person between the ages of 10 and 29, the normal range of blood triglycerides is 53 × 104 mg/dL. What is the correct interpretation of the units in this measurement?

A) milligrams times deciliter B) micrograms per deciliter C) megagrams per deciliter D) milligrams per deciliter A) milligrams times deciliter B) micrograms per deciliter C) megagrams per deciliter D) milligrams per deciliter

Exam 1: Matter and Measurement

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When a piece of magnesium (density = 1.738 g/mL)is placed in a container of liquid carbon tetrachloride (density = 1.59 g/mL), the piece of magnesium will float on top of the carbon tetrachloride.

(True/False)

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Question 21

When 4.870 × 10^-3 is correctly converted to its standard form the number becomes

(Multiple Choice)

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Question 22

The specific gravity of a substance has units of g/mL.

(True/False)

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Question 23

The number 0.0007270 is larger than the number 5.7 × 10^-3.

(True/False)

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Question 24

Carry out the following calculation and report the answer using the proper number of significant figures: 38.251 × 73.1

(Multiple Choice)

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Question 25

For a person between the ages of 10 and 29, the normal range of blood triglycerides is 53 × 10⁴ mg/dL. What is the correct interpretation of the units in this measurement?

(Multiple Choice)

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Question 26

In scientific notation, a number is written as y × 10^x, where x can be any positive or negative number or fraction.

(True/False)

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Question 27

If a tree is 89.5 cm tall, what is the tree's height expressed in yards?

(Multiple Choice)

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Question 28

Carry out the following calculation and report the answer using the proper number of significant figures:

(Multiple Choice)

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Question 29

If a package of nuts weighs 41.3 oz, what is the mass of the package expressed in milligrams?

(Multiple Choice)

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Question 30

Dividing a number by 10⁵ is the same as multiplying a number by 10^-5.

(True/False)

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Question 31

The meaning of the metric prefix milli- is 1000.

(True/False)

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Question 32

PVC plastic, which is used in pipes, is an example of a synthetic material.

(True/False)

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Question 33

The measurement 10.3 cm has more significant figures than the measurement 10.3 m.

(True/False)

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Question 34

Nitrogen gas (N₂)would properly be classified as a compound.

(True/False)

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Question 35

The recommended dietary allowance for calcium for teenage children is 1, 300 mg per day. If a typical 8.0-fl oz glass of reduced-fat milk contains 298 mg of calcium, how many fluid ounces of milk does a teenager need to drink to get the entire recommended amount of calcium from this milk?

(Multiple Choice)

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Question 36

When crude oil leaks into the ocean from an oil tanker, the crude oil floats because it is _____ dense than water.

(Short Answer)

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Question 37

A patient's urine sample has a density of 1.02 g/mL. If 1250 mL of urine was excreted by the patient in one day, what mass of urine was eliminated?

(Multiple Choice)

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Question 38

A _____ change converts one material to another.

(Short Answer)

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Question 39

One Kelvin is the same size as one degree Celsius.

(True/False)

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Question 40

Showing 21 - 40 of 89

Exam 1: Matter and Measurement

When a piece of magnesium (density = 1.738 g/mL)is placed in a container of liquid carbon tetrachloride (density = 1.59 g/mL), the piece of magnesium will float on top of the carbon tetrachloride.

When 4.870 × 10-3 is correctly converted to its standard form the number becomes

The specific gravity of a substance has units of g/mL.

The number 0.0007270 is larger than the number 5.7 × 10-3.

Carry out the following calculation and report the answer using the proper number of significant figures: 38.251 × 73.1

For a person between the ages of 10 and 29, the normal range of blood triglycerides is 53 × 104 mg/dL. What is the correct interpretation of the units in this measurement?

In scientific notation, a number is written as y × 10x, where x can be any positive or negative number or fraction.

If a tree is 89.5 cm tall, what is the tree's height expressed in yards?

Carry out the following calculation and report the answer using the proper number of significant figures:

If a package of nuts weighs 41.3 oz, what is the mass of the package expressed in milligrams?

Dividing a number by 105 is the same as multiplying a number by 10-5.

The meaning of the metric prefix milli- is 1000.

PVC plastic, which is used in pipes, is an example of a synthetic material.

The measurement 10.3 cm has more significant figures than the measurement 10.3 m.

Nitrogen gas (N2)would properly be classified as a compound.

The recommended dietary allowance for calcium for teenage children is 1, 300 mg per day. If a typical 8.0-fl oz glass of reduced-fat milk contains 298 mg of calcium, how many fluid ounces of milk does a teenager need to drink to get the entire recommended amount of calcium from this milk?

When crude oil leaks into the ocean from an oil tanker, the crude oil floats because it is _____ dense than water.

A patient's urine sample has a density of 1.02 g/mL. If 1250 mL of urine was excreted by the patient in one day, what mass of urine was eliminated?

A _____ change converts one material to another.

One Kelvin is the same size as one degree Celsius.

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Gases, Liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

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When 4.870 × 10^-3 is correctly converted to its standard form the number becomes

The number 0.0007270 is larger than the number 5.7 × 10^-3.

For a person between the ages of 10 and 29, the normal range of blood triglycerides is 53 × 10⁴ mg/dL. What is the correct interpretation of the units in this measurement?

In scientific notation, a number is written as y × 10^x, where x can be any positive or negative number or fraction.

Dividing a number by 10⁵ is the same as multiplying a number by 10^-5.

Nitrogen gas (N₂)would properly be classified as a compound.