Chapter 1: Introduction to Matter

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What determines how a substance can be converted into another substance?

Physical changes

Physical properties

Chemical properties (correct)

Classification of matter

What is a characteristic of a pure substance?

It is composed of more than one component

It can be broken down into other pure substances by a physical change

It has a constant composition regardless of sample size or origin (correct)

It has a varying composition regardless of sample size or origin

What is an example of a mixture?

Sugar dissolved in water (correct)

Sugar

Oxygen

Water

What is a characteristic of a mixture?

It can have varying composition Signup and view all the answers

What is an element?

A pure substance that cannot be broken down by a chemical change Signup and view all the answers

What is a compound?

A pure substance formed by chemically joining two or more elements Signup and view all the answers

When rounding a number, what happens if the first digit to be dropped is between 0 and 4?

It is dropped and all remaining digits to its right are also dropped. Signup and view all the answers

What is the purpose of the 'rounded to' column in Table 1.5?

To show the number of decimal places to round to. Signup and view all the answers

When performing addition and subtraction, how do you determine the number of decimal places in the answer?

By using the number of decimal places in the original number with the fewest decimal places. Signup and view all the answers

What is the range of the coefficient in scientific notation?

1 to 10 Signup and view all the answers

What happens if the first digit to be dropped is 5 or greater when rounding a number?

1 is added to the digit to its left. Signup and view all the answers

What is the exponent in scientific notation?

Any positive or negative whole number. Signup and view all the answers

What is the purpose of moving the decimal point when converting a standard number to scientific notation?

To give a number between 1 and 10 Signup and view all the answers

What happens when the exponent x is positive in a scientific notation number?

The decimal point is moved to the right Signup and view all the answers

What is the purpose of writing conversion factors as fractions?

To make the units cancel Signup and view all the answers

What is the goal when setting up a problem using conversion factors?

To make sure all unwanted units cancel Signup and view all the answers

What happens when a unit appears in the numerator in one term and the denominator in another term?

The units cancel Signup and view all the answers

What is the result of multiplying a number by a conversion factor?

The quantity in the desired unit is obtained Signup and view all the answers

What are the two essential components of every measurement?

Unit and quantity Signup and view all the answers

What is the base unit of length in the metric system?

Meter Signup and view all the answers

What is the symbol for the unit of mass in the metric system?

g Signup and view all the answers

What is the numerical value of the prefix 'Mega'?

10^6 Signup and view all the answers

How is the unit 'Liter' related to the base unit of volume?

It is the base unit of volume Signup and view all the answers

What is the prefix 'micro-' sometimes abbreviated as?

μc Signup and view all the answers

What is the base unit of length?

Meter Signup and view all the answers

How many meters are in a kilometer?

1,000 meters Signup and view all the answers

What is the base unit of mass?

Gram Signup and view all the answers

How many grams are in a kilogram?

1,000 grams Signup and view all the answers

What is the difference between mass and weight?

Mass is the amount of matter in an object, weight is the force that matter feels due to gravity Signup and view all the answers