CHM 090 Midterm Review

Chapter 2

100

What is the base unit for volume?

Liters

200

Perform the following metric–metric conversion.

5.00 dL to mL

500 mL

300

Perform the following metric-English conversion:

6.78 ns to min

1.13*10^-10 min

400

A piece of green jade is a rectangular solid measuring 2.50 cm by 1.25 cm by 3.50 mm. What is the volume in cubic centimeters?

1.09 cm³

500

If an automobile engine is 325-in.³, what is the volume in liters?

5.33 L

Chapter 3

100

What is the name of the element with the symbol Sb?

Antimony

200

What is the term for a phase change from liquid to solid?

Freezing

300

Is sodium chloride an example of a ____________. 

Compound

400

Metal or nonmetal?

Has a low melting point.

Nonmetal

500

Metal or nonmetal?

Can react with metals and nonmetals.

Nonmetals

Chapter 4

100

What is the relative mass of an electron and proton?

Electron: 0 (or negligible-too small to count)

Proton: 1 amu

200

Which element is this?

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d²

Titanium

300

Calculate the average atomic mass for lithium given the following data for its natural isotopes:

⁶Li:6.015 amu with 6.29% abundance; and ⁷Li:7.016 amu.

6.95 amu

400

Write the electron configuration for Cadmium (Cd). 

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰

500

Given the isotopic masses of iron are ⁵⁷Fe:56.935 amu and ⁵⁸Fe:57.933 amu, and the average atomic mass is 57.065 amu, calculate the percent abundance for each isotope.

Fe-57: 86.974%

Fe-58: 13.026%

Chapter 5

100

State the number of valence electrons for Argon (Ar). 

8 valence electrons

200

Vertical columns in the periodic table are referred to by what two terms?

Groups or families

300

According to the general trends in the periodic table, which element should have the largest atomic radius?

Francium (Fr)

400

Write the noble gas configuration for tin (Sn). 

[Kr] 5s² 4d¹⁰ 5p²

500

Write the noble gas configuration for an ion of S^2-

[Ar]

Random!

100

Which element can be found in Group 13 and is a semimetal?

Boron(B)

200

Calculate the volume in milliliters for the following liquid: 

61.5 g of ether (d=0.714 g/mL)

86.1 mL

300

Sr²⁺ is isoelectronic with which noble gas?

Krypton (Kr). 

400

A Honda Accord hybrid gets 35 kilometers per liter city driving. What is the mileage in miles per gallon? (Given: 1 km=0.621 mi and 1 L=0.264 gal)

82 mi/gal

500

Write the noble gas configuration for an atom of mercury (Hg). 

[Xe] 6s² 4f¹⁴ 5d¹⁰