Chemical Compounds Quiz

Which is a property shared by most molecular compounds?

• high boiling point

• high melting point

• low melting point

• nonpolar bonds

When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• neutral atom

Magnesium bromide is an ionic compound with the chemical formula MgBr2. What does the "2" tell you?

• Bromide has a 2- charge.

• There are two magnesium ions to every bromide ion.

• There are two bromide ions for every magnesium ion.

• Bromide has a 2+ charge

In the chemical formula for an ionic compound, which item is written first?

The chemical name for the compound with the formula Na2S is

• sodium fluoride

• magnesium sulfide

• lithium oxide

• sodium sulfide

What is a double bond?

• a bond between two atoms

• one pair of electrons shared between two atoms

• two pairs of electrons shared between two atoms

• two pairs of electrons shared between four atoms

Electrons involved in bonding between atoms are

• valence electrons

• inside the nucleus

• closest to the nucleus

• positively charged

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A mixture made of two or more elements, at least one of which is a metal is called a(n)

• superconductor

• metallic bond

• complex metal

• alloy

Which of the following terms means that metals can be rolled into thin sheets, as in aluminum foil, or beaten into complex shapes?

• polar

• alloy

• ductile

• malleable

Which of the following groups contains the most reactive elements?

• the alkali metals

• the alkaline earth metals

• the carbon family

• the noble gases