Vinegar contains a common carboxylic acid. true false

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 many neutrons does an element have if its atomic number is 50 and its mass number is 166

What is the mass of 0.750 mole of aluminum oxide, al2o3?