If 2 grams of element x combine with 4 grams of element y to form compound xy, how many grams of element y would combine with 21 grams of x to form the same compound?

If a bottle of olive oil contains 1.4 kg of olive oil, what is the volume, in milliliters ( ml ), of the olive oil?

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

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added