How do you think the density of the mantle compares to the densities of the crust and the core? Explain your answer. PLZ HELP

What is the number of moles in 15.0 g ash3?

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that

Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h