Compounds, Mixtures, Solutions, Suspensions FLASH CARDS

A compound is a substance formed when two or more chemical elements are chemically bonded together. Which of the following is an example of a compound?

• Oxygen (O2)

• Water (H2O)

• Gold (Au)

• Iron (Fe)

Tags

NGSS.MS-PS1-1

A formula in chemistry is:

• a mathematical equation used in physics

• a representation of the elements in a compound

• a type of chemical reaction

• a unit of measurement

Tags

NGSS.MS-PS1-1

A subscript in a chemical formula indicates:

• the number of atoms of an element in a molecule

• the type of chemical bond

• the charge of the molecule

• the state of matter

An ion is:

• a molecule with a neutral charge

• an atom or molecule with a net electric charge due to the loss or gain of one or more electrons

• a type of chemical bond

• a stable atom

An ionic bond is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

• A type of bond formed by sharing electrons

• A type of bond formed by the electrostatic attraction between oppositely charged ions

• A type of bond formed by the transfer of protons

• A type of bond formed by the sharing of protons

A covalent bond is a type of chemical bond that involves the sharing of electron pairs between atoms.

• A type of chemical bond that involves the sharing of electron pairs between atoms.

• A type of bond that involves the transfer of electrons from one atom to another.

• A bond formed by the electrostatic attraction between oppositely charged ions.

• A weak bond between two molecules resulting from an electrostatic attraction.

Tags

NGSS.HS-PS1-1

A synthesis reaction is a type of chemical reaction in which:

• two or more substances combine to form a new compound

• a compound breaks down into two or more simpler substances

• one element replaces another in a compound

• two elements exchange places in two compounds

Tags

NGSS.MS-PS1-1

What is a decomposition reaction?

• A reaction where a compound breaks down into two or more simpler substances.

• A reaction where two or more substances combine to form a new compound.

• A reaction that involves the exchange of ions between two compounds.

• A reaction that involves the transfer of electrons between two species.

A mixture is:

• a combination of two or more substances that are not chemically bonded

• a single pure substance

• a chemical compound

• a type of element

Mixture: ______ is a combination of different substances where each retains its own properties.

• Mixture

• Solution

• Solvent

• Solute