What is the difference/similarities between the periodic table developed by Mendeleev versus the one developed by Moseley? (don't reply with this easily googled ("The major difference between the periodic table created by Dmitri Mendeleev and the one created by Henry Moseley is that: Moseley arranged the elements in order of increasing atomic number.")

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

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?

What is the effect of returning nuclear reactor cooling water back into bodies of water?