Why Does Hot Coco Have a Higher Temperature Then Cold Milk? Explain In terms of Molecules and energy. hi

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?