CHE 111 Exam 1 Review

In the number 12.93 which number is estimated?

Heat and temperature are the same thing.

What is matter composed of?

There is nothing you can hold or touch that is not made of chemicals.

How many little c calories are in a Calorie?

The science that tries to understand how matter behaves by studying how atoms and molecules behave.

Gases are compressible.

What is energy?

What type of reaction has more energy in the products than the reactants?

A pure substance is

Which of the following methods can be used to separate a mixture

What is the correct standard notation of 5.93 x 10⁴?

A change one that a substance displays only through changing its composition is called

Compounds can NOT be decomposed into simpler substances during chemical reaction

What are models that explain and give the underlying causes for observations and laws?

Which step of the scientific methods involves measuring or observing some aspect of nature?

What is two or more atoms joined to one another in specific geometric arrangements called?

The energy associated with position or composition is called

What is "a way of learning that emphasizes observation and experimentation"?

What is "anything that has mass and takes up space"?

What are tentative interpretations of the observations? What must they be?

What does the scientific method emphasize?