Chemistry Review Version B

Select the element that is expected to have the most negative electron affinity

• K

• Te

• Cl

• Ca

• Ge

Choose the compound below that should has the largest lattice energy.

• KF

• NaF

• CaO

• MgS

• MgO

Which of the following compounds illustrates sp³ hybridization?

• C₂H₄

• BeF₂

• CCl₄

• V₂O₅

• SO₂

What is the correct electron configuration of the potassium cation?

• 1s²2s²2p⁶3s²3p⁶4s²

• 1s²2s²2p⁶3s¹3p⁶4s¹

• 1s²2s²2p⁶3s²3p⁶

• 1s²2s²2p⁶3s²3p⁵

• 1s²2s²2p⁶3s²3p⁴

Which of the following molecules have a trigonal bipyramidal geometry?

BrF₅ SF₄ PCl₅

• BrF₅ , SF₄

• BrF₅ , SF₄ , PCl₅

• SF₄

• BrF₅

• PCl₅

In assembling a Lewis Dot diagram of diagram of CF₂Cl₂ , there are ____ total electrons to use in the model.

• 50

• 48

• 40

• 32

• 29

What is the net ionic equation for the reaction between aqueous sodium hydroxide (NaOH)

and aqueous nitric acid (HNO₃)?

• H⁺(aq) + NO₃(aq) + Na⁺(aq) + OH(aq) → H₂O(l)+ Na⁺(aq) + NO₃(aq)

• H⁺(aq) + OH^-(aq) → H₂O(l)

• HNO₃(aq) + NaOH(aq)→H₂O(l) + NaNO₃(aq)

• Na⁺(aq) + NO₃(aq)→NaNO₃(aq)

• HNO₃(aq) + OH^-(aq)→H₂O(l) + NO₃^-(aq)

Determine the initial volume needed to generate 2.50 L of 1.50 M HNO₃from 2.50 M HNO₃ by dilution

• 2.50 L

• 2.50 M

• 1.50 M

• 1.50 L

• 0.9 mL

9.

Determine the simplest formula of the compound which has the composition 51.4 % C, 8.6 %

H, and 40.0 % N by mass

• CHN

• C₃H₆N₂

• C₄H₈N₂

• C₅H₇N

• C₆H₁₀N

Which of the following compounds is soluble in water?

• Ba(OH)₂

• AgCl

• MgCO₃

• CaF₂

• PbSO₄