A chemist determined by measurements that 0.050 moles of potassium participated in a chemical reaction. Calculate the mass of potassium that participated in the chemical reaction.

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Stage in which a typical star has completely stopped fusion

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?