Unit 1 Section C Summary HW Problems Pt. 2

#11:
The positive ions of the metals mix with the negative ions in nature, making them stick together.

#12:
a.  My main resource was the book
b. Our school textbook is most likely a reliable source
c. There wasn't any bias

#13:
I would consider our school textbook to be a reliable source, since it was a published work.

#14:
If your information is inaccurate, you will be lacking the actual information needed to maintain a safe lab environment.

#15:
19.1 million

#16:
a. 32 g/mol
b. 48 g/mol
c. 100 g/mol
d. 58 g/mol
e. 180 g/mol

#17:
Their molar masses aren't similar.

#18:
a. 1 mole
b. 1/2 of a mole
c. 1/10 of a mole

#19:
The quarter is 91.7% copper and 8.3 % nickel.

#20:
a. 87.1%
b. 53%
c. 40%