Which of the following are Polyatomic Ions? (Select all that apply) CN(-)

HCO3(-)

KBr

PO4(2-)

S(2-)

NaCl

Mg(2+)

Define dew point. i am writing this part to be able to ask the question

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Listenbase your answer to the question on the information below.nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body.cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment.which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61