Asolution is made by mixing equal masses of methanol, ch 4 o , and ethanol, c 2 h 6 o . determine the mole fraction of each component to at least three significant figures.

Nonpoint source pollution is difficult to control because it

What was bohr’s contribution to the planetary model

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space