Unit 6: Chemical Formulas

Flashcards about chemical formulas

Cation

A positively charged ion.

Anion

A negatively charged ion.

Charge

Electrical property of atoms.

Chemical Formula

A symbolic representation of a chemical compound using element symbols and subscripts to indicate the number of atoms of each element.

Chemical Name

The descriptive name of a chemical compound.

Ion

An atom or molecule with an electrical charge due to the loss or gain of electrons.

Metal

An element that is typically hard, shiny, malleable, and a good conductor of electricity and heat.

Nonmetal

An element that typically lacks metallic attributes.

Polyatomic Ion

An ion composed of two or more atoms covalently bonded together that act as a single unit with an electric charge.

Transition Metal

Metals that can form ions with multiple possible charges (oxidation states).

Al(CN)3

Aluminum Cyanide

KOH

Potassium Hydroxide

H2CO3

Carbonic Acid

(NH4)3PO4

Write the formula for ammonium phosphate

B5Si2

Write the formula for pentaboron disilicide

Al2S3

Write the formula for aluminum sulfide

Fe2O3

Write the formula for iron (III) oxide

HNO2

Write the formula for nitrous acid

Covalent

Label octaphosphorus nonasulfide as ionic, covalent, or both.

Ionic

Label manganese (III) sulfite as ionic, covalent, or both.

Both

Label chloric acid as ionic, covalent, or both.

Ionic

Label Li₂S as ionic, covalent, or both.