Spring Exam Review

Question 1

Which of the following is NOT a conclusion drawn from Rutherfords Alpha-scattering experiment?

Accepted Answer

Electrons are negatively charged

Question 2

Gases are much more compressible than solids or liquids because____.

Accepted Answer

They are farther apart

Question 3

Which of the following is a strong oxyacid?

Accepted Answer

None of These

Question 4

The maximum number of electrons in the 3rd energy level of an atom is:

Accepted Answer

18

Question 5

In a polar covalent bond electrons are shared...

Accepted Answer

Unequally

Question 6

A gas has volume of 8.0L at a certain pressure.How must pressure change to 1/2 volume of gas?

Accepted Answer

Pressure Must be doubled

Question 7

What volume of 0.10 M NaOH is needed to neutralize 45.0 mL of 0.025 M nitric acid?

Accepted Answer

11 mL

Question 8

Of the Alkaline Earth metals, which has the highest Ionization Energy?

Accepted Answer

Beryllium

Question 9

What is the shape of a molecule of Carbon Tetrachloride?

Accepted Answer

Tetrahedral

Question 10

Based on previous problem, calculate Percent yield

Accepted Answer

97.2%

Question 11

How does the [H3O+] compare to the [OH-] in an acid solution?

Accepted Answer

H30+ is greater

Question 12

All two-atom molecules:

Accepted Answer

Have a linear shape

Question 13

Rank the following atoms in order of increasing atomic radius: Barium, Francium, Carbon, Sodium

Accepted Answer

C < Na < Ba < Fr

Question 14

Which of the following is NOT a value for Standard Temperature and Pressure?

Accepted Answer

6.02x 1023 Particles

Question 15

When Alkaline Earth metals react chemically, they

Accepted Answer

Lose 2 electrons

Question 16

In a titration reaction, the point at which the indicator changes color is called the ___.

Accepted Answer

Endpoint

Question 17

In the previous equation, what is the mole ratio for Potassium Carbonate to Potassium chloride?

Accepted Answer

1:2

Question 18

What is the ”general rule” for making a solution?

Accepted Answer

Like dissolves like

Question 19

How many of the following substances exhibit dispersion forces: CO2, Br2, NH4, H2O, Cl2

Accepted Answer

5

Question 20

How many lone pars of electrons are in the lewis structure for Ammonia NH3 ?

Accepted Answer

1

Question 21

30.0g of Ammonium Nitrate is dissolved to make 0.125L of solution. What is the molarity?

Accepted Answer

3.00M

Question 22

Balance: Potassium carbonate reacts w/ hydrochloric acid producing potassium chloride H20 & CO2

Accepted Answer

K2CO3 + 2HCl →H2O +CO2 + 2KCl

Question 23

Is the same molecule polar or non-polar (Carbon Tetrachloride)?

Accepted Answer

Non-Polar

Question 24

What must be true of 2 electrons occupying the same orbital? What principle/Rule is this?

Accepted Answer

Opposite Spin; Pauli's Exclusion Principle

Question 25

Which of the following gases would occupy the greatest volume at STP

Accepted Answer

8 grams of hydrogen

Question 26

Use the ideal gas equation to calculate the volume of 3.0 moles of H2 at 25 oC and .997 atm.

Accepted Answer

74 L

Question 27

If 250 mL of a gas at STP is heated to 45 oC at 620 torr, what is the new volume?

Accepted Answer

180 ml

Question 28

What are the products of the reaction between sulfuric acid and potassium hydroxide?

Accepted Answer

Water and Potassium Sulfate

Question 29

What is the volume of 1.50 moles of oxygen gas at 25.0 degrees Celsius and .95 atm of pressure?

Accepted Answer

39 L

Question 30

Sodium chloride can be classified as

Accepted Answer

An Ionic crystalline solid

Question 31

Which of the intermolecular forces is the weakest?

Accepted Answer

Dispersion Forces

Question 32

For a molecule of Nitrogen Trifluoride, Name its: Bond type, shape, and molecular polarity?

Accepted Answer

Polar covalent, trigonal pyramidal, and Polar

Question 33

From previous equation: 40.0g K2CO3 react to produce 42.0g KCl. What is theoretical yield?

Accepted Answer

43.2g KCl

Question 34

what type of bond forms between Carbon and Chlorine?

Accepted Answer

Polar Covalent

Question 35

properties of (aqueous) acids include:______.

Accepted Answer

Turn litmus red

Question 36

Label the conjugate base in the reaction: NH3 + H2O ---> H3O+ + NH2-

Accepted Answer

NH2-

Spring Exam Review

Questions 36

Spring Exam Review

Questions 36