How many molecules are in each sample? b. 389 g CBr₄

How many atoms are specified by each of these prefixes: mono-, di-, tri-, tetra-, penta-, hexa-?

Determine the number of each type of atom in each formula. a. Ca(NO₂)₂ d. Mg(HCO₃)₂

Determine the number of each type of atom in each formula. b. CuSO₄ d. Mg(HCO₃)₂

Determine the number of each type of atom in each formula. c. Al(NO₃)₃

Write a chemical formula for each molecular model. (See Appendix IIA for color codes.) (a)

Write a chemical formula for each molecular model. (See Appendix IIA for color codes.) (c)

Classify each element as atomic or molecular. a. neon b. fluorine c. potassium d. nitrogen

Classify each compound as ionic or molecular. a. CO₂ b. NiCl₂ c. Nal d. PCl₃

Classify each compound as ionic or molecular. a. CF₂Cl₂ b. CCl₄ c. PtO₂ d. SO₃

Based on the molecular views, classify each substance as an atomic element, a molecular element, an ionic compound, or a molecular compound.

Based on the molecular views, classify each substance as an atomic element, a molecular element, an ionic compound, or a molecular compound.

Write a formula for the ionic compound that forms between each pair of elements. a. silver and chlorine b. sodium and sulfur c. aluminum and sulfur d. potassium and chlorine

Write a formula for the compound that forms between potassium and each polyatomic ion. a. carbonate b. phosphate c. hydrogen phosphate d. acetate

Name each ionic compound. a. Mg₃N₂ b. KF c. Na₂O d. Li₂S f. KI e. CsF

Name each ionic compound. a. SnCl₄ b. PbI₂ c. Fe₂O₃ d. CuI₂ e. HgBr₂ f. CrCl₂

Name each ionic compound containing a polyatomic ion. a. CuNO₂ b. Mg(C₂H₃O₂)₂ c. Ba(NO₃)₂ d. Pb(C₂H₃O₂)₂

Name each ionic compound containing a polyatomic ion. a. Ba(OH)₂ b. NH₄I c. NaBrO₄ d. Fe(OH)₃

Write the formula for each ionic compound. a. sodium hydrogen sulfite b. lithium permanganate c. silver nitrate d. potassium sulfate e. rubidium hydrogen sulfate

Write the formula for each ionic compound. f. potassium hydrogen carbonate

Write the formula for each ionic compound. a. copper(II) chloride

Write the formula for each ionic compound. b. copper(I) iodate c. lead(II) chromate e. potassium hydroxide

Write the formula for each ionic compound. d. calcium fluoride

Write the formula for each ionic compound. f. iron(II) phosphate

Write the name from the formula or the formula from the name for each hydrated ionic compound.

a. CoSO₄•7 H₂O

b. iridium(III) bromide tetrahydrate

c. Mg(BrO₃)₂•6 H₂O

d. potassium carbonate dihydrate

Write the name from the formula or the formula from the name for each hydrated ionic compound.

a. cobalt(II) phosphate octahydrate

b. BeCl₂•2 H₂O

c. chromium(III) phosphate trihydrate

d. LiNO₂•H₂O

Name each molecular compound. a. CO b. NI₃ c. SiCl₄ d. N₄Se₄

Name each molecular compound. a. SO₃ c. BrF₅

Name each molecular compound. b. SO₂