Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide. in an experiment a 5.00 g sample of calcium oxide reacted with excess water and yielded 6.11 g of the calcium hydroxide. what was the percent yield

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.

What is the mass of 0.46 mol of mgcl2

I’m an electrically neutral atomic any element, there are equal numbers of