8th Grade Science EOG Review-Chemistry

Front

What are the physical properties that make metals suitable for use in electrical wiring?

Back

Conductivity and ductility.

Front

Which of the following is classified as an element?

Back

Iron.

Front

What represents a mixture?

Back

Air in the atmosphere.

Front

What is the BEST example of a homogenous mixture?

Back

Salt Water.

Front

What is true about a chemical reaction?

Back

All of the atoms in the reactants will be a part of the products.

Front

Define conductivity in terms of materials.

Back

The ability of a material to allow the flow of electric current or heat.

Front

What is ductility?

Back

The ability of a material to be stretched into a wire without breaking.

Front

What is a homogenous mixture?

Back

A mixture that has a uniform composition throughout, such as salt water.

Front

What is a heterogeneous mixture?

Back

A mixture that has a non-uniform composition, such as salad.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.