Relative to the mass of the nucleous of a atom. the mass of electron is

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?