Given the formulas for two compounds: h h h h h h h h h-c-c-o-c-c-h and h-c-c-c-c-oh i i h h h h h h h h these compounds differ in a) gram-formula mass c) molecular formula d) percent composition by mass b) physical properties at stp

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.

What is avogadro’s number, and why is it useful

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead