4. Which substances in the table above are ionic compounds? A. CaCl, and K S
B. CaCl2 ,K, S, and FrF
C. CH. , XeFo, and SO2
D. CH, , XeFg , SOand FrF

Which is true of chemicals? a. things containing chemicals always cost a lot of money. b. chemicals are never dangerous. c. chemicals are in many substances in a home. d. chemicals are rarely found on earth.

What’s a special glass that most beakers are made of

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a