Chemistry S1 Review (without electron configurations)

Front

What does the Law of Conservation of Mass state?

Back

Mass is conserved in all physical and chemical changes.

Front

Which bond is most likely to occur: HS, H2S, HSO4, or H3SO4?

Back

H2S

Front

Identify an element from the following: Salt (NaCl), Water (H2O), Oxygen (O), Carbon Dioxide (CO2).

Back

Oxygen (O)

Front

What is the most reactive group of metals?

Back

Alkali metals.

Front

What type of reaction is characterized by the splitting of a nucleus?

Back

Fission reaction.

Front

Define an element.

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a chemical bond?

Back

A lasting attraction between atoms that enables the formation of chemical compounds.

Front

What are alkali metals?

Back

The group of elements in Group 1 of the periodic table, known for being highly reactive.

Front

What is a fission reaction?

Back

A nuclear reaction in which the nucleus of an atom splits into smaller parts.

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.