Which family (group) of elements rarely forms chemical bonds with other elements?
a. nonmetals
b. noble gases
c. halogens
d. metals

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

How many miles of water are produced if 5.43 mol pbo2 are consumed

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h