Which two formulas represent Arrhenius acids
A)CH3COOH and CH3CH2OH
B)HC2H3O2 and KHSO4
C) KHCO3 and KHSO4
D) NaSCN and NA2S2O3

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

What does a numerical subscript following an element in a chemical formula mean?