What is the maximum number of moles of h2o that can be produced when 2.0 moles of nh3 are completely reacted

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

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.