42)If the masses of objects increase and their distance from each other remains the same, then the force of gravity between the two objectsA)decreases. B)increases. C)remains the same. D)increases then decreases.

In a copper wire, a temperature increase is the result of which of the following

‘which reaction would most likely require the use of an inert electrode?

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?