A 50.0-mL sample of H2SO4 is neutralized with NaOH solution having a concentration of 2.00 M. If 35.5 mL of NaOH are required to complete the neutralization, what is the concentration of
the sulfuric acid solution?

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.

How is the atomic number of a nucleus changed by alpha decay

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.