How many kilograms of chromium are obtained by the Aluminothermic process when 38 kg of chromium (III) oxide are completely reduced and the mass of the metal obtained is 90% of mass, calculated from the reaction equation?​

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

How many moles of al3+ ions are in 1.25 moles of al2o3