Chemistry Review 1

Front

What is a nonmetal?

Back

A nonmetal is an element that typically lacks the characteristics of metals, such as being a good conductor of electricity and heat. Nonmetals can be gases, liquids, or solids at room temperature.

Front

Which element is a nonmetal?

Back

Selenium is a nonmetal.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a combination of two or more substances that are not uniformly distributed, meaning you can see the different components.

Front

Give an example of a heterogeneous mixture.

Back

A taco is an example of a heterogeneous mixture.

Front

What is a pure substance?

Back

A pure substance is a material made up of only one type of particle, which can be either an element or a compound.

Front

Which of these is a compound? Aluminium (Al), Carbon Dioxide (CO2), Nitrogen (N), Sand?

Back

Carbon Dioxide (CO2) is a compound.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is the property of nonmetals regarding electricity?

Back

Nonmetals are generally poor conductors of electricity.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the composition is uniform throughout, and the different components are not distinguishable.

Front

Give an example of a homogeneous mixture.

Back

Saltwater is an example of a homogeneous mixture.