General Chemistry Units and Conversion Factors Quiz

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What is the correct approach to convert between units of measurement?

Multiply the given quantity by a conversion factor that cancels the initial unit and leaves the desired unit (correct)

Add a conversion factor to the given quantity that cancels the initial unit and leaves the desired unit

Subtract a conversion factor from the given quantity that cancels the initial unit and leaves the desired unit

Divide the given quantity by a conversion factor that cancels the initial unit and leaves the desired unit

In the example of converting the height of Angel Falls from miles to kilometers, why was the conversion factor with kilometers in the numerator used?

To cancel out the miles unit and leave the kilometers unit (correct)

To cancel out the kilometers unit and leave the miles unit

Because kilometers are smaller than miles, a smaller conversion factor is needed

Because kilometers are larger than miles, a larger conversion factor is needed

If a quantity is given in a larger unit and needs to be converted to a smaller unit, what will happen to the numerical value?

The numerical value will remain the same

The numerical value will increase (correct)

The numerical value will decrease

The numerical value may increase or decrease, depending on the specific units

In the example of converting the length from centimeters to inches, what are the equivalent quantities needed to construct the conversion factor?

1 in = 2.54 cm Signup and view all the answers

Which of the following is an example of a physical change?

Melting ice into water Signup and view all the answers

What is the measured quantity in the given example of buying speaker wire?

Both length of the wire and price per foot Signup and view all the answers

What is the importance of including units in all calculations?

To minimize errors in calculations Signup and view all the answers

Which of the following is true about conversion factors?

Conversion factors are ratios used to convert units in calculations Signup and view all the answers

If a car travels at 60 miles per hour, how many feet does it cover in an hour? (1 mile = 5280 feet)

$60 \times 5280$ feet Signup and view all the answers

What is the purpose of using equivalent quantities to construct conversion factors?

To simplify converting measured quantities between different units Signup and view all the answers

In chemistry, what do measured quantities consist of?

A number and a unit Signup and view all the answers

Why should a person's height be expressed as '6 feet' instead of just '6'?

To provide a complete representation including the unit Signup and view all the answers

What is the primary focus of the study of chemistry?

The properties of matter and the changes it undergoes Signup and view all the answers

Which of the following is an example of a physical property?

The melting point of water Signup and view all the answers

What is the difference between a physical change and a chemical change?

A physical change involves a change in physical properties, while a chemical change involves a change in chemical properties Signup and view all the answers

Which of the following is a measured quantity in chemistry?

All of the above Signup and view all the answers

What is the importance of units and conversion factors in chemistry calculations?

All of the above Signup and view all the answers

Which of the following is an example of a problem-solving approach in chemistry?

All of the above Signup and view all the answers

General Chemistry Units and Conversion Factors Quiz

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Questions and Answers

What is the correct approach to convert between units of measurement?

In the example of converting the height of Angel Falls from miles to kilometers, why was the conversion factor with kilometers in the numerator used?

If a quantity is given in a larger unit and needs to be converted to a smaller unit, what will happen to the numerical value?

In the example of converting the length from centimeters to inches, what are the equivalent quantities needed to construct the conversion factor?

Which of the following is an example of a physical change?

What is the measured quantity in the given example of buying speaker wire?

What is the importance of including units in all calculations?

Which of the following is true about conversion factors?

If a car travels at 60 miles per hour, how many feet does it cover in an hour? (1 mile = 5280 feet)

What is the purpose of using equivalent quantities to construct conversion factors?

In chemistry, what do measured quantities consist of?

Why should a person's height be expressed as '6 feet' instead of just '6'?

What is the primary focus of the study of chemistry?

Which of the following is an example of a physical property?

What is the difference between a physical change and a chemical change?

Which of the following is a measured quantity in chemistry?

What is the importance of units and conversion factors in chemistry calculations?

Which of the following is an example of a problem-solving approach in chemistry?

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