Chemistry Exam 1

How many periods are there in the periodic table?

• 12

• 7

• 4

• 23

What is Group 1a on the periodic table?

• alkali metals

• nonmetals

• Lanthanides

• Diatomic

convert and round to nearest whole number

40 'C = ? 'F

• 104

• 0

• 2

• 47

4g NaCl How many grams are there?

• 3

• 89

• 62

• 14.5

Name this compound

KCl

• Chlorine Potassium

• Potassium Chloride

• Potassium Chlorine

• Potassium Chlorate

What is the percent composition of this compound?

H₃PO₄

• H:70.4% P:39% O:4%

• H:57% P:18% O:99%

• H:27% P:88% O:19%

• H: 3.09%, P: 31.61%, O: 65.31%