Question 1

Which property of nitrogen family elements primarily drives their chemical reactions?

Accepted Answer

The presence of $$5$$ valence electrons in the $$s$$ and $$p$$ sublevels

Question 2

What is the balanced chemical equation for the reaction between $$2$$ moles of nitrogen gas and $$3$$ moles of fluorine gas?

Accepted Answer

$$2\mathrm{N}_2 + 3\mathrm{F}_2 \rightarrow 2\mathrm{NF}_3$$

Question 3

When phosphorus trihalides react with water, which acid is formed?

Accepted Answer

Phosphorous acid

Question 4

Which of the following is a correct product of the reaction between $$2\mathrm{Sb}$$ and $$4\mathrm{Cl}_2$$?

Accepted Answer

$$2\mathrm{Sb} + 4\mathrm{Cl}_2 \rightarrow 2\mathrm{SbCl}_3$$

Question 5

Which statement best explains why nitrogen family elements can form multiple halides?

Accepted Answer

They have variable oxidation states due to their $$s$$ and $$p$$ electrons

Question 6

What is the product when $$\mathrm{PCl}_3$$ reacts with $$3$$ moles of water?

Accepted Answer

$$\mathrm{H}_3\mathrm{PO}_3$$

Question 7

Which equation correctly represents the reaction of $$\mathrm{AsF}_3$$ with water?

Accepted Answer

$$\mathrm{AsF}_3 + 3\mathrm{H}_2\mathrm{O} \rightarrow \mathrm{H}_3\mathrm{AsO}_3 + 3\mathrm{HF}$$

Question 8

Which of the following best describes the role of lone pairs in nitrogen family chemistry?

Accepted Answer

They allow the elements to act as Lewis bases

Question 9

A student mixes $$2$$ moles of antimony with $$4$$ moles of chlorine gas. What is the limiting reactant?

Accepted Answer

Neither, both are completely consumed

Question 10

Which of the following is a correct balanced equation for the reaction of $$\mathrm{As}_2$$ with $$3\mathrm{F}_2$$?

Accepted Answer

$$\mathrm{As}_2 + 3\mathrm{F}_2 \rightarrow 2\mathrm{AsF}_3$$

Question 11

Which acid is produced when $$\mathrm{PCl}_3$$ reacts with water in a laboratory setting?

Accepted Answer

Phosphorous acid

Question 12

In the reaction $$2\mathrm{N}_2 + 3\mathrm{F}_2 \rightarrow 2\mathrm{NF}_3$$, what type of chemical bond is formed between nitrogen and fluorine?

Accepted Answer

Covalent bond

Question 13

Which of the following is a real-world application of phosphorus trihalide reactions?

Accepted Answer

Production of fertilizers

Question 14

If $$2\mathrm{Sb} + 4\mathrm{Cl}_2 \rightarrow 2\mathrm{SbCl}_3$$, how many moles of $$\mathrm{SbCl}_3$$ are produced from $$4$$ moles of $$\mathrm{Sb}$$ and excess $$\mathrm{Cl}_2$$?

Accepted Answer

$$4$$ moles

Question 15

Which element in the nitrogen family is most likely to form pentahalides?

Accepted Answer

Phosphorus

Question 16

What is the oxidation state of phosphorus in $$\mathrm{PCl}_3$$?

Accepted Answer

$$+3$$

Question 17

Which of the following best describes the trend in reactivity of nitrogen family elements with halogens?

Accepted Answer

Reactivity increases down the group

Question 18

A chemist wants to synthesize $$\mathrm{NF}_3 in $$the lab. Which reactants should be used?

Accepted Answer

$$\mathrm{N}_2$$ and $$\mathrm{F}_2$$

Question 19

Which product is formed when $$\mathrm{PCl}_3$$ reacts with water?

Accepted Answer

$$\mathrm{H}_3\mathrm{PO}_3$$

Nitrogen Family Reactions: Halogens and Water

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