Which type of reaction is illustrated by: Brz(aq) +
2Nal(aq) + 2NaBr(aq) + 12(aq)
Select one:
O a. a combination of more than one of the above
O b. precipitation only
O c. acid-base only
O d. redox only

yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes

explanation:

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.

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

1. they vary with a higher number because boiling is way hotter than melting