Unit 5 retest review:Ionic and Molecular Compounds

Front

Which atom will never be in the middle of a Lewis Dot structure?

Back

Hydrogen (H) is never in the middle of a Lewis Dot structure because it can only form one bond.

Front

Write the formula for tin(II) phosphite.

Back

The formula for tin(II) phosphite is Sn₃(PO₃)₂.

Front

Name the compound SO₃.

Back

The compound SO₃ is named sulfur trioxide.

Front

Write the formula for potassium hydroxide.

Back

The formula for potassium hydroxide is KOH.

Front

What is the formula for the compound formed by Mg²⁺ and Cl⁻?

Back

The formula is MgCl₂.

Front

Define ionic compound.

Back

An ionic compound is formed when atoms transfer electrons, resulting in the attraction between positively and negatively charged ions.

Front

What is a molecular compound?

Back

A molecular compound is formed when two or more nonmetals share electrons through covalent bonds.

Front

Explain the octet rule.

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Front

What is the significance of subscripts in a chemical formula?

Back

Subscripts indicate the number of atoms of each element in a compound.