When the sun runs out of fuel it will become a red giant. What will happen 12 next? 1. it will expand and absorb two planets it will expand and give us more sunlight 2. it will contract and give us less sunlight 3. expand and absorb Mercury Venus and Earth.​

distance, luminosity, brightness, radius, chemical composition, and temperature

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.