8.P.1 (Chemistry) Review

Front

What are the most similar properties of elements N and P?

Back

Nitrogen (N) and Phosphorus (P) are both nonmetals and belong to Group 15 of the periodic table, sharing similar chemical properties.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, meaning the different components are not distinguishable.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that does not have a uniform composition, and the different components can be seen and separated.

Front

What evidence indicates a chemical reaction has occurred?

Back

The formation of a new substance, such as a precipitate, is strong evidence of a chemical reaction.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals and are found between them on the periodic table.

Front

What happens to mass during a chemical reaction?

Back

Mass is conserved in a chemical reaction, meaning the total mass of the reactants equals the total mass of the products.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What are the characteristics of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile.

Front

What are the characteristics of nonmetals?

Back

Nonmetals are usually dull, poor conductors of heat and electricity, and brittle in solid form.