what mass, in grams, of KClO3 is consumed when 38 grams of O2 is produced according to the following rxn: KClO3= O2+ KCl? What do I do to solve it don't give an answer just the equation or explain how to solve it

How do scientists think that gravity affected the formation of our solar system?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?