What is the change in enthalpy when 9.75 g of aluminum reacts with excess ammonium nitrate (NH4NO3) according to the equation:

2Al + 3NH4NO3  3N2 + 6 H2O + Al2O3 ΔH = -2030kJ

What happens when the temperature of a solution increases?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?