Chemical Formula Quiz

In a chemical formula, the number of each type of atom in the compound is shown by numbers called ____.

• chemical symbols

• superscripts

• oxidation numbers

• subscripts

Two of the same element covalently bonded together is called a _______.

• molecule

• crystal

• diatomic molecule

• negative ion

Tags

NGSS.MS-PS1-1

The elements that make up a compound and the exact number of atoms of each element in a unit of the compound can be shown in a ____.

• chemical formula

• superscript

• subscript

• chemical symbol

Tags

NGSS.MS-PS1-1

A chemical bond that occurs when atoms share electrons is a(n) ____ bond.

• magnetic

• ionic

• polyatomic

• covalent

Tags

NGSS.MS-PS1-1

Name the following compound: CaBr2

• carbon bromine

• calcium bromide

• calcium bromine

• none of these

Tags

NGSS.MS-PS1-1

The sum of the oxidation numbers in a neutral compound is always ____.

• a negative number

• zero

• one

• a positive number

The oxidation number of an atom is shown with a ____.

• positive number

• superscript

• subscript

• negative number

How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?

• 4

• 2

• 8

• 6

What kind of chemical bond is formed when an exchange/transfer of electrons occurs?

• magnetic

• covalent

• hydrate

• ionic

What is the total number of atoms in the compound Ca(BrO₃)₂?

• 5

• 3

• 9

• 2

Tags

NGSS.MS-PS1-1