Multiple choice In a given chemical reaction, 1 mol of sulfur reacts with 4 moles of chlorine.

4S + 2Cl2

S + 4 Cl2

S + 2Cl2

S + Cl2

What is the independent variable in this investigation? mass volume sample number substance density

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.

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.