Question 1

The compound, BaO, absorbs water and carbon dioxide readily and is used to dry gases and organic solvents. What is its name?

Accepted Answer

A)   barium oxide
B)   barium(II)  oxide
C)   barium monoxide
D)   baric oxide
E)   barium peroxideF) A) and C)
G) B) and E)

Question 2

For each of the following elements, indicate whether it is a metal, a non-metal or a metalloid:
A) S
B) Ge
C) Hg
D) H
E) I
F) Si

Accepted Answer

a. nonmetal b. metal...

Question 3

Lithium forms compounds which are used in dry cells and storage batteries and in high-temperature lubricants. It has two naturally occurring isotopes, 6Li (isotopic mass = 6.015121 amu)  and 7Li (isotopic mass = 7.016003 amu) . Lithium has an atomic mass of 6.9409 amu. What is the percent abundance of lithium-6?

Accepted Answer

A)   92.50%
B)   86.66%
C)   46.16%
D)   7.503%
E)   6.080%F) B) and E)
G) A) and C)

Question 4

The molecular formula of a compound provides more information than its structural formula.

Accepted Answer

A) True 
 B)False

Exam 2: The Components of Matter

The molecular formula of a compound provides more information than its structural formula.

Correct Answer
verified

Correct Answer
verified

For each of the following elements, indicate whether it is a metal, a non-metal or a metalloid: A) S B) Ge C) Hg D) H E) I F) Si

Correct Answer
verified
a. nonmetal b. metal...
View Answer

The compound, BaO, absorbs water and carbon dioxide readily and is used to dry gases and organic solvents. What is its name?

Correct Answer
verified

Exam 2: The Components of Matter

The molecular formula of a compound provides more information than its structural formula.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

For each of the following elements, indicate whether it is a metal, a non-metal or a metalloid: A) S B) Ge C) Hg D) H E) I F) Si

Correct Answerverifieda. nonmetal b. metal...View AnswerShow Answer

The compound, BaO, absorbs water and carbon dioxide readily and is used to dry gases and organic solvents. What is its name?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
a. nonmetal b. metal...
View Answer

Correct Answer
verified