If a chemist adds 5.61 moles of 2KAgC2N2 to excess Zn, how much pure silver (Ag) can be
made?

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.