Introduction to Chemical Reacation & Review of Bonding

What do solar cells convert into electricity?

• Water

• Plants

• Sunlight

• Wind

Which type of chemical bond involves the transfer of electrons between atoms?

• covalent

• metallic

• covalent

• ionic

Which refers to a macromolecule that forms as a result of the joining of multiple monomers?

• amino acid

• glucose

• nucleic acid

• polymer

Which describes the substances that form covalent bonds?

• a metal and metalloid

• a metal and a nonmetal

• two nonmetals

• two metals

True or False? An atom bonds to have eight valence electrons to become stable.

• true

• false

Natural gas is a renewable energy source.

• true

• false

A chemical reaction is the rearrangement of atoms by the breaking and reforming of chemical bonds.

• true

• false

A shorthand that uses chemical symbols and molecular formulas to show what occurs during a chemical reaction

• math equation

• chemical equation

• ionic equation

• covalent equation

A number that indicated how many times to multiply a variable.

• subscript

• coefficient

The Law of Conservation of Mass is a natural law that states that the same amount of mass is present before and after a chemical reaction occurs.

• true

• false