Chemistry HW. 1) write the chemical formula for the following a) Magnesium chloride b) Calcium oxide c) Aluminum oxide 2) what is chemical equation? 3) write the formula of any ten compounds.​

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Which statement can best be concluded from the ideal gas law?

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.