Which of the following compounds contains the Iron (III) ion? A) FeN
B)FeS
C)FeCl2
D)FeS

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

0.09 moles of sodium sulfate in 12 ml of solution

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