Al2(SO4)3 + 6 K --- > 3 K2SO4 + 2 Al In a reaction, 18.7 grams of potassium is used. How many grams of aluminum is made?

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

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Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.