Scientific knowledge is based on a. observations and inferences. b. hypotheses and doubt. c. political and social views. d. bias and opinions.

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

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 the mass of 0.46 mil of mgcl2