Holt Chemistry

A binary compound is one that contains two..

• Elements.

• Atoms.

Tags

NGSS.MS-PS1-1

The empirical formula of a compound is HgNO₃. If the compound contains one mercury ion, what is its molecular formula?

• HgNO₃

• Hg(NO₃)₂

A monatomic ion..

• Has a single unit electrical charge.

• Is a composed of only one atom.

The empirical formula of a compound is Ba₃Cr₂O₈. If the compound contains 2 chromium atoms, what is its molecular formula?

• Ba₃(CrO₄)₂

• Ba₄(CrO₄)₃

Tags

NGSS.MS-PS1-1

How are a lead (ll) ion and a lead (lV) ion different?

• They have a different number of electrons

• They have a different mass number

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the name of the compound whose formula is As₂O₅?

• Arsenic oxide

• Diarsenic pentoxide

Let R represent a metal ion. What is the charge on R if it forms the ionic compound represent by the formula R₂SO₄?

• +2

• +1

What is the formula for calcium phosphide?

• Ca₃P₂

• Ca₃P

Some covalent compounds consist of networks of atoms instead of molecules. The names of these compounds are determined..

• As if the lowest whole-number ratio represented a molecule.

• By following the rules for naming ionic compounds that form networks of ions.

___________ always has an oxidation number equal to -2.

• Chlorine

• Oxygen