1. . What happens when the atoms of a substance are regrouped? A. gold becomes malleable
B. the atoms break apart and disappear
C. a new substance is formed
D. the substance stays the same
2. The creation of carbon monoxide is an effect. What is one cause?
A. the regrouping of the atoms in table salt
B. the burning of fossil fuels
C. cleaning swimming pools
D. operating a stove

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?