Question 1

Which of the following correctly describes the difference between ionic and molecular compounds?

Accepted Answer

Ionic compounds consist of cations and anions held together by electrostatic attraction, while molecular compounds consist of nonmetal atoms bonded by shared electrons.

Question 2

What is the correct name for the ion $$\mathrm{Fe$$^{3+}$$}$$?

Accepted Answer

Iron (III) ion

Question 3

Which of the following is the correct formula for a compound formed from $$\mathrm{Al$$^{3+}$$}$$ and $$\mathrm{PO_4$^{3-}}$$?

Accepted Answer

$$\mathrm{$$AlPO_4$$}$$

Question 4

Given the ions $$\mathrm{Ca$$^{2+}$$}$$ and $$\mathrm{Br^-}$$, what is the correct formula and name for the compound they form?

Accepted Answer

$$\mathrm{$$CaBr_2$$}$$, calcium bromide

Question 5

What is the correct name for the compound with the formula $$\mathrm{Fe(NO_3$)_3}$$?

Accepted Answer

Iron (III) nitrate

Question 6

Which of the following is the correct formula for tin(IV) dichromate?

Accepted Answer

$$\mathrm{Sn(Cr_2O_7)_2}$$

Question 7

What is the correct name for the molecular compound $$\mathrm{$$ClF_3$$}$$?

Accepted Answer

Chlorine trifluoride

Question 8

Which of the following is the correct formula for dinitrogen pentasulfide?

Accepted Answer

$$\mathrm{N_2S_5}$$

Question 9

A patient is prescribed potassium sulfate for a medical condition. What is the correct chemical formula for potassium sulfate?

Accepted Answer

$$\mathrm{K_2SO_4}$$

Question 10

Which acid is formed when $$\mathrm{NO_2$^-} is $$dissolved in water?

Accepted Answer

Nitrous acid, $$\mathrm{$$HNO_2$$} (aq)$$

Question 11

Which of the following is the correct name for $$\mathrm{H_2SO_3} (aq$$)?

Accepted Answer

Sulfurous acid

Question 12

What is the correct formula for phosphoric acid?

Accepted Answer

$$\mathrm{H_3PO_4} (aq)$$

Question 13

Which of the following is the correct name for $$\mathrm{AgC_2H_3O_2}$$?

Accepted Answer

Silver acetate

Question 14

A water sample is contaminated with $$\mathrm{$$MnO_4$$^-}$$ ions. What is the correct name for this ion?

Accepted Answer

Permanganate ion

Question 15

Which of the following is the correct formula for nickel(II) permanganate?

Accepted Answer

$$\mathrm{Ni($$MnO_4$$)_2}$$

Question 16

What is the correct name for $$\mathrm{SO_2$}$$?

Accepted Answer

Sulfur dioxide

Question 17

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

Accepted Answer

$$\mathrm{K_2SO_3}$$

Question 18

A compound is formed from $$\mathrm{Ni$$^{2+}$$}$$ and $$\mathrm{PO_4$^{3-}}. $$What is its correct formula?

Accepted Answer

$$\mathrm{Ni_3$(PO_4$)_2}$$

Question 19

Which of the following is the correct name for $$\mathrm{Al_2$(CO_3$)_3}$$?

Accepted Answer

Aluminum carbonate

Step-by-Step Guidance for Naming and Writing Chemical Compounds

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