Unit 4 Retest Review

Front

What is a solid?

Back

A solid is a state of matter where molecules are tightly held together, have a definite shape, and have low energy, resulting in little movement.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is a proton?

Back

A proton is a subatomic particle found in the nucleus of an atom that has a positive charge.

Front

What are pure substances?

Back

Pure substances are materials that have a uniform and definite composition. They can be elements or compounds.

Front

What are nonmetals?

Back

Nonmetals are elements located to the right of the staircase on the periodic table, known for their poor conductivity and high electronegativity.

Front

What is a liquid?

Back

A liquid is a state of matter where molecules are close together but can move freely, allowing it to take the shape of its container.

Front

What is a gas?

Back

A gas is a state of matter where molecules are far apart and move freely, filling the entire volume of their container.

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom that has no charge (neutral).

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties and can be separated by physical means.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, typically found along the staircase line on the periodic table.