Last modified: Wed 01/29/2014 01:01:48 pm

Oklahoma State University

This is BCE # 6. It is OK to use your textbook, but if you can answers the questions without it that is OK too.

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Answer all of the questions below. If you do not know an answer enter CNA. However, it will help me the most if you answer each question with your best intuition/idea about what would be a reasonable answer.


The BCE must be completed before class starts, for this BCE class has already met. It will not count towards your BCE total. NOTE: If class has not started and you receive this message, go ahead and do the BCE, I'll still count it.

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1. Complete the following table: (Note: you will be expected to answer the questions included in this table after memorizing Tables 2.3, 2.4, 2.5 and 2.6. When you write a formula enter the subscript as the number, use the '^' to preceed a charge. For example formula for sulfate, SO42-, would be entered the SO4^2-.)

Ion #

Formula

Name

1

NO3-

2

hydroxide ion

3

Mg2+

4

Cl-

5

dichromate ion

6

ammonium ion

7

Na+

2. Ionic compounds are composed of ions. We have mentioned cations (ions with a positive charge) and anions (ions with a negative charge). The formula for an ion compound is determined by determining the number of cations and anions needed to balance the poistivve and negative charges for the ions. For example a compound containing potassium ion (K+) and bromide ion (Br-) would have the formula, KBr. While a compound containing aluminum ion (Al3+) and sulfate ion (SO42-) would have the formula, Al2(SO4)3.

a) what is the formula of a compound formed using ion #7 and ion #1.

b) what is the formula of a compound formed using ion #3 and ion #2.

c) what is the formula of a compound formed using ion #6 and ion #5.

d) what is the formula of a compound formed using ion #3 and ion #4.

3. Name each of the compounds in Q2.

a)

b)

c)

d)

4. Is there anything about the questions that you feel you do not understand? List your concerns/questions.

5. If there is one question you would like to have answered in lecture, what would that question be?