Unit 1 Review

Front

What does it mean for results to be accurate?

Back

Results are accurate if they are close to the true or accepted value.

Front

What does it mean for results to be precise?

Back

Results are precise if they yield consistent results upon repeated measurements.

Front

What are the two main classifications of matter?

Back

Matter can be classified as either a Pure Substance or a Mixture.

Front

What is a Pure Substance?

Back

A Pure Substance is a material that has a constant composition and consistent properties throughout.

Front

What is a Mixture?

Back

A Mixture is a combination of two or more substances that retain their individual properties.

Front

What unit is commonly used to measure volume?

Back

The unit used to measure volume is the Liter (L).

Front

What is the smallest unit of matter?

Back

The smallest unit of matter is an atom.

Front

What is an atom?

Back

An atom is the basic unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically bonded together.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.