sulfur trioxide (SO3), a pollutant released by coal burning plants, can react with water (H2O) in the atmosphere to produce sulfuric acid (H2SO4). write the balanced equation for this reaction

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?