The atomic NUMBER tells which information below. Check all that apply. 1.The number of electrons in an atom.

2.The number of protons in an atom.

3.The number of neutrons in an atom

During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?