8.P.1 (Chemistry) Review

Front

What does the Law of Conservation of Mass state?

Back

The total amount of matter in a closed system remains constant during a chemical reaction; matter is neither created nor destroyed.

Front

What are the properties used to classify metals?

Back

Properties such as magnetism, luster (shine), malleability, ductility, and conductivity are used to classify metals.

Front

Which elements are considered nonmetals?

Back

Elements that are typically poor conductors of heat and electricity, and have properties opposite to metals, such as oxygen, nitrogen, and sulfur.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, where the individual components are not distinguishable.

Front

What is a heterogeneous mixture?

Back

A mixture that consists of visibly different substances or phases, where the components can be easily separated.

Front

How do you determine if two elements have similar properties?

Back

Elements in the same group (column) of the periodic table often have similar properties due to their similar electron configurations.

Front

What happens to mass during a chemical reaction?

Back

The mass of the reactants equals the mass of the products, demonstrating the Law of Conservation of Mass.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change, as it changes from solid to liquid without altering its chemical composition.

Front

What is an example of a chemical change?

Back

Burning wood is a chemical change, as it transforms the wood into ash and gases, changing its chemical structure.

Front

What are metalloids?

Back

Elements that have properties intermediate between metals and nonmetals, such as silicon and germanium.