A 26.0 g sample of a compound contains 6.0 g of C, 1.0 g of H, and 19.0 g of F. Which of the following is the empirical formula of the compound?
Choose 1
CHF
CH2F2
C2H2F2
C2H4F4

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.

Can someone me with 6 to 10 plz this is for masteries test.

What four properties do all waves have in common