Question 1

Which of the following best describes the difference between ionic and covalent bonds?

Accepted Answer

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Question 2

What is the correct formula for magnesium phosphate?

Accepted Answer

$$Mg_3$$($$PO_4)_2$

Question 3

Which of the following compounds contains a polyatomic ion?

Accepted Answer

$$KNO_3$$

Question 4

A molecule of $$CO_2$$ has which molecular shape according to VSEPR theory?

Accepted Answer

Linear

Question 5

Which of the following is the correct balanced equation for the combustion of methane ($$CH_4$$)?

Accepted Answer

$$CH_4 + 2O_2$$ \rightarrow $$CO_2 + 2H_2O$

Question 6

Which intermolecular force is strongest in water ($$H_2O$$)?

Accepted Answer

Hydrogen bonding

Question 7

What is the molar mass of $$Na_2CO_3$$?

Accepted Answer

$$106 \ g/mol$$

Question 8

Which of the following best describes a double replacement reaction?

Accepted Answer

Two compounds exchange ions to form two new compounds.

Question 9

If 2.00 moles of $$H_2$$ react with excess $$O_2 to $$form water, how many grams of water are produced? ($$H_2O$$ molar mass = $$18 \ g/mol)$$

Accepted Answer

$$36 \ g$$

Question 10

Which of the following is the correct formula for zinc acetate?

Accepted Answer

$$Zn(C_2H_3O_2)_2$$

Question 11

Which law describes the relationship between pressure and volume of a gas at constant temperature?

Accepted Answer

Boyle's Law

Question 12

What is the oxidation state of iron in $$Fe_2O_3$$?

Accepted Answer

+3

Question 13

Which of the following molecules is polar?

Accepted Answer

$$NH_3$$

Question 14

What is the correct name for $$Al_2$$($$CO_3)_3$?

Accepted Answer

Aluminum carbonate

Question 15

Which of the following is a property of gases according to the kinetic molecular theory?

Accepted Answer

Gas particles move in random, straight-line motion.

Question 16

What is the correct formula for the ion formed by potassium?

Accepted Answer

$$K^+$$

Question 17

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

Accepted Answer

$$Ca(NO_3$)_2$$

Question 18

A sample of gas has a volume of $$2.0 \ L at$$ $$1.0 \ atm. If $$the pressure is increased to $$2.0 \ atm at $$constant temperature, what is the new volume?

Accepted Answer

$$1.0 \ L$$

Question 19

Which of the following is the correct name for $$FePO_4$$?

Accepted Answer

Iron(III) phosphate

Chapters 6–8: Ions, Molecular Compounds, Chemical Reactions, and Gases – Study Notes

Guida di studio - Domande di pratica

Study guide - Flashcard