Question 1

Which of the following polyatomic ions has a -2 charge?

Accepted Answer

Sulfate ($$\mathrm{SO_4$^{2-}})$$

Question 2

A patient receives 500 mL of IV fluid. How many liters is this?

Accepted Answer

$$0.5 L$$

Question 3

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

Accepted Answer

$$\mathrm{$$ClO_4$$^-}$$

Question 4

What is the approximate bond angle in a molecule with tetrahedral geometry?

Accepted Answer

$$109^\circ$$

Question 5

Which of the following elements is a noble gas?

Accepted Answer

Neon ($$\mathrm{Ne})$$

Question 6

A compound contains 2 nitrogen atoms and 4 oxygen atoms. What is its correct name?

Accepted Answer

Dinitrogen tetraoxide

Question 7

Which of the following is the correct value for Avogadro's number?

Accepted Answer

$$6.022 	imes 10$$^{23}$$

Question 8

A sample contains $$3.01 	imes 10$$^{23}$$ molecules of glucose. How many moles of glucose does this represent?

Accepted Answer

$$0.5$$ mol

Question 9

Which of the following ions is NOT correctly matched with its formula?

Accepted Answer

Phosphate: $$\mathrm{PO_4$^{2-}}$$

Question 10

Which of the following is the correct conversion factor between yards and meters?

Accepted Answer

$$1 \mathrm{yd} = 0.9144 \mathrm{m}$$

Question 11

A molecule has the formula $$\mathrm{AB_2U_2} ($$where U = lone pair). What is its molecular geometry?

Accepted Answer

Bent

Question 12

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

Accepted Answer

$$\mathrm{C_2H_3O_2^-}$$

Question 13

Which of the following is the correct mass of a proton?

Accepted Answer

$$1.0072$$ amu

Question 14

A solution contains $$1.5 kg of $$glucose. How many grams of glucose does this represent?

Accepted Answer

$$1500 g$$

Question 15

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

Accepted Answer

$$\mathrm{$$MnO_4$$^-}$$

Question 16

Which of the following is the correct value for absolute zero in Celsius?

Accepted Answer

$$-273.15^\circ \mathrm{C}$$

Question 17

A molecule has three bonding electron groups and no lone pairs around the central atom. What is its shape?

Accepted Answer

Trigonal planar

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

$$\mathrm{CO_3$^{2-}}$$

Question 20

A molecule has four electron groups around the central atom, two of which are lone pairs. What is its molecular geometry?

Accepted Answer

Bent

GOB Chemistry Exam 2 Study Guide: Chapters 4, 5, 6, 7 (Atoms, Elements, Nuclear Chemistry, Ionic & Molecular Compounds, Chemical Reactions & Quantities)

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