Exam 1: What Is Chemistry

Which of the following types of descriptions represents the specific amount of something?

A qualitative description implies a description of the extent to which a compound is used in a reaction.

Experiments are not performed if a hypothesis exists on the issue to be tested.

A(n) _____ refers to an educated guess about how the natural universe works.

What is science? What is its importance?

A(n) _____ is an element that is solid at room temperature, is shiny and silvery, conducts electricity and heat well, can be pounded into thin sheets, and can be drawn into thin wires.

A(n) _____ refers to a specific statement that is thought to be never violated by the entire natural universe.

Anything that has mass and takes up space is known as _____.

What is meant by physical properties of matter?

Which of the following terms refers to the elements that have properties of both metals and nonmetals?

A(n) _____ refers to a test of the natural universe to see if a guess (hypothesis) is correct.

A qualitative description means knowing how much of something is present.

What is called a substance? Provide an example.

The temperature outside is 95 degrees Fahrenheit; this is an example of a quantitative description.

Chemistry is the study of the interactions of matter with other matter and with energy.

_____ can be regarded as the process of knowing about the natural universe through observation and experiment.

Anything that has mass and takes up space can be called _____.

Nonmetals do not conduct electricity or heat very well.

What are elements? Compare elements with compounds.

A(n) _____ refers to a characteristic that describes matter as it exists.