Question 1

Which of the following best describes a monatomic ion?

Accepted Answer

A single atom that carries a charge due to loss or gain of electrons.

Question 2

Which of the following is a polyatomic ion?

Accepted Answer

SO$$_4^{2-}$$

Question 3

What is the correct chemical formula for ammonium ion?

Accepted Answer

$$\mathrm{NH_4$^+}$$

Question 4

Which of the following ions is commonly found in table salt?

Accepted Answer

Na$$^{+}$$ and Cl$$^{-}$$

Question 5

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

Accepted Answer

$$\mathrm{SO_4$^{2-}}$$

Question 6

What is the smallest unit of an ionic compound?

Accepted Answer

Formula unit

Question 7

Which of the following best describes the structure of a chemical formula?

Accepted Answer

A representation of a compound that lists all constituent elements and their relative proportions.

Question 8

Which of the following is a correct formula for phosphate ion?

Accepted Answer

$$\mathrm{PO_4$^{3-}}$$

Question 9

Which of the following statements correctly differentiates between ionic and molecular compounds?

Accepted Answer

Ionic compounds are composed of cations and anions held together by electrostatic forces, while molecular compounds consist of atoms bonded by covalent bonds.

Question 10

Which of the following ions is NOT a common monatomic ion?

Accepted Answer

NO$$_3^{-}$$

Question 11

A student mixes calcium chloride ($$\mathrm{$$CaCl_2$$}) $$with sodium sulfate ($$\mathrm{Na_2SO_4}) in $$water. Which ions are present in the solution before any reaction occurs?

Accepted Answer

Ca$$^{2+}$$, Cl$$^{-}$$, Na$$^{+}$$, SO$$_4^{2-}$$

Question 12

Which of the following is the correct formula for nitrate ion?

Accepted Answer

$$\mathrm{NO_3$^-}$$

Question 13

Which of the following ions would you expect to form from an element in Group 1 of the periodic table?

Accepted Answer

$$\mathrm{M^+}$$

Question 14

Which of the following is a correct chemical formula for a molecular compound?

Accepted Answer

$$\mathrm{CO_2$}$$

Question 15

Which of the following ions is present in both sulfuric acid and sodium sulfate?

Accepted Answer

SO$$_4^{2-}$$

Question 16

A compound contains only potassium and nitrate ions. What is its chemical formula?

Accepted Answer

$$\mathrm{$$KNO_3$$}$$

Question 17

Which of the following is the correct formula for hydroxide ion?

Accepted Answer

$$\mathrm{OH^-}$$

Question 18

Which of the following ions is commonly found in household bleach?

Accepted Answer

ClO$$_{-}$$

Question 19

Which of the following ions is present in baking soda?

Accepted Answer

HCO$$_3^{-}$$

Question 20

Which of the following ions is formed when magnesium loses two electrons?

Accepted Answer

Mg$$^{2+}$$

Ions, Chemical Formulas, and Types of Compounds: General Chemistry Study Notes

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