If an object has a density of 500g/ml and a volume of 50ml, what is its mass? A.100ml
B.250g
C.55ml
D.45mk

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

The minerals found in bones are deposited by living cells called

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg