How many moles are in 2.3 grams of phosphorus?

What is the mass of each element in a 324.8 sample of co2

What is the empirical formula for c4h8o2

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.