4Cr(s) + 302(g) → 2Cr2O3(s) How many moles of oxygen (O2) would react with 0.35 moles of chromium (Cr)?

2. how is heavy water different from normal water

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms