Question 1

Which of the following ionic compounds is INSOLUBLE in water according to the solubility rules provided?

Accepted Answer

AgCl

Question 2

What is the correct formula for the ionic compound formed between magnesium and bromine?

Accepted Answer

MgBr$$_2$$

Question 3

Which of the following elements is a noble gas?

Accepted Answer

Ne

Question 4

A solution contains Na$$_2SO$_4. $$According to the solubility rules, what can you conclude about its solubility in water?

Accepted Answer

It is soluble.

Question 5

Which of the following ions is most likely to form a soluble compound with Cl$$^-$$?

Accepted Answer

Na$$^+$$

Question 6

What is the charge on the sulfate ion?

Accepted Answer

$$-2$$

Question 7

Which of the following compounds will form a precipitate when mixed with a solution of NaCl?

Accepted Answer

AgNO$$_3$$

Question 8

If you mix solutions of Pb(NO$$_3$$)$$_2$$ and KCl, what is the expected outcome?

Accepted Answer

A precipitate of PbCl$$_2$$ forms.

Question 9

Which of the following is the correct formula for ammonium sulfate?

Accepted Answer

NH$$_4_2$SO_4$

Question 10

A patient receives a saline solution containing NaCl. What is the primary reason NaCl is used in medical IV solutions?

Accepted Answer

NaCl is highly soluble and maintains electrolyte balance.

Question 11

Which of the following compounds is expected to be soluble in water based on the solubility rules?

Accepted Answer

K$$_2SO$_4$$

Question 12

What is the formula for the compound formed between calcium and nitrate ions?

Accepted Answer

Ca(NO$$_3$$)$$_2$$

Question 13

Which of the following is a polyatomic ion?

Accepted Answer

SO$$_4$$^{2-}$$

Question 14

If a compound contains NH$$_4^+$$ and NO$$_3^-$$, what can you conclude about its solubility?

Accepted Answer

It is soluble.

Question 15

Which of the following is the correct formula for potassium phosphate?

Accepted Answer

K$$_3PO$_4$$

Question 16

A student mixes solutions of Na$$_2CO$_3$$ and CaCl$$_2. $$What is the expected outcome?

Accepted Answer

A precipitate of CaCO$$_3$$ forms.

Question 17

Which of the following is the correct formula for aluminum sulfate?

Accepted Answer

Al$$_2(SO$_4$$)$$_3$$

Question 18

Which of the following compounds is expected to be insoluble in water?

Accepted Answer

BaSO$$_4$$

Question 19

What is the formula for the compound formed between iron(III) and chloride ions?

Accepted Answer

FeCl$$_3$$

Question 20

Which of the following is the correct formula for calcium phosphate?

Accepted Answer

Ca$$_3(PO$_4$$)$$_2$$

Exam 3 Study Guidance – Multiple Choice and Concepts

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