Read the given chemical reaction. C2H6 + O2 → CO2 + H2O
How many moles of H20 are produced during the complete combustion of 1.4 moles
of C2H6? (5 points)

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

If an atom has 12 protons and 13 neutrons