Question 1

A patient is given a saline solution containing NaCl dissolved in water. Which of the following best describes the type of bond formed between Na and Cl in NaCl?

Accepted Answer

Ionic bond

Question 2

What is the correct formula for the compound formed between aluminum ions ($$\mathrm{Al$$^{3+}$$}) $$and phosphate ions ($$\mathrm{PO_4$^{3-}}$$)?

Accepted Answer

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

Question 3

A sample of gas has a volume of $$8.8\ \mathrm{L} at a $$pressure of $$4.4\ \mathrm{atm}. $$What volume will it occupy at $$760\ \mathrm{mmHg}$$, if the temperature remains constant?

Accepted Answer

$$0.605\ \mathrm{L}$$

Question 4

Which of the following elements is a metal?

Accepted Answer

Chromium

Question 5

What is the molecular shape of $$\mathrm{SO_2$}$$ according to VSEPR theory?

Accepted Answer

Bent

Question 6

A mixture is prepared by dissolving $$2\ \mathrm{g} of$$ $$\mathrm{KCl} in$$ $$100\ \mathrm{g} of$$ $$\mathrm{H_2O}. In $$this mixture, $$\mathrm{H_2O} is $$the ________.

Accepted Answer

solvent

Question 7

Which of the following compounds contains both ionic and covalent bonds?

Accepted Answer

$$\mathrm{Na_2SO_4}$$

Question 8

A balloon is filled with helium gas. The balloon is put into a chamber where the pressure is less than the atmospheric pressure. What will happen to the volume of the balloon?

Accepted Answer

It will increase

Question 9

Which of the following is the correct balanced equation for the reaction of potassium carbonate with calcium nitrate to form calcium carbonate and potassium nitrate?

Accepted Answer

$$\mathrm{K_2CO_3} + \mathrm{Ca(NO_3$)_2} \rightarrow \mathrm{$$CaCO_3$$} + 2\mathrm{$$KNO_3$$}$$

Question 10

A solution is made by mixing $$8\ \mathrm{g} of $$sodium chloride (salt) and $$82\ \mathrm{g} of $$water. Which one is the solute?

Accepted Answer

Sodium chloride

Question 11

Which of the following will NOT make an ionic bond?

Accepted Answer

Copper and bromine

Question 12

What is the total pressure of a gaseous mixture that contains three gases with partial pressures of $$0.54\ \mathrm{atm}$$, $$120\ \mathrm{torr}$$, and $$210\ \mathrm{mm\ Hg}$$?

Accepted Answer

$$1.17\ \mathrm{atm}$$

Question 13

Which of the following best explains why it is difficult to breathe at high altitudes?

Accepted Answer

Lower pressure

Question 14

What is the correct name for the compound $$\mathrm{N_2O_3}$$?

Accepted Answer

Dinitrogen trioxide

Question 15

Which of the following is NOT a property of metals?

Accepted Answer

Brittle

Question 16

A $$1500\ \mathrm{mL}$$ solution has $$48\ \mathrm{g} of $$sugar. Calculate the percent (m/v) concentration of this solution.

Accepted Answer

$$3.2\ \%$$

Question 17

Which of the following compounds is incorrectly named?

Accepted Answer

$$\mathrm{K_2SO_3} = $$potassium sulfate

Question 18

What is the correct electron configuration for a chloride ion ($$\mathrm{Cl^-}$$)?

Accepted Answer

$$1s^2$$ $$2s^2$$ $$2p^6$$ $$3s^2$$ $$3p^6$$

Question 19

A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is $$330\ \mathrm{mmHg}$$ and the partial pressure of the oxygen is $$1.0\ \mathrm{atm}$$, what is the total pressure of the mixture in torr?

Accepted Answer

$$1090\ \mathrm{torr}$$

Question 20

Which of the following will dissolve in benzene, a nonpolar solvent?

Accepted Answer

Cholesterol (nonpolar)

General Chemistry: Atomic Structure, Bonding, Nomenclature, Gases, and Solutions – Study Guide

Guida di studio - Domande di pratica

Study guide - Flashcard