What is the mass of 9.80 ×10^23 formula units of zinc chloride Zn(CIO3)2

Asmall amount of a solid is added to water. the observation made after fifteen minutes is shown in the figure. which of these solids has been probably added to water? a) oil b) sand c) sugar d) wood chips

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

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