2 Cr(s) + 3 Cu(NO3)2 (aq) - 2 Cr(NO3)3 + 3 Cu (s) If 28.5 grams of Cr react how many grams of Cu(NO3)2 have to react?

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

11 players on a field that has a maximum of 11 players

what does the table look like