For barium and silicon plz give me oxidation number for both and chemical formula and drawn model!
if possible do it for barium and silicon as well plz!

What is the number of moles in 15.0 g ash3?

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.