PLEASE I NEED HELP how many moles of calcium are needed to react completely with 6 moles of H2O in the following reaction:
Ca + 2H2O = Ca(OH)2 + H2 (make sure to include work)

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Based on the equation and the information in the table, what is the enthalpy of the reaction?

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.