Question

Two chemicals react in an endothermic reaction. What can be known about this reaction?

1)The new substance will need more energy to form its chemical bonds than the old substance will release.
2)More energy will be released from the old substance than the new substance will need to form its chemical bonds.
3)A precipitate will form as a result of the reaction.
4)A gas will form as a result of the reaction.

Answer 1

(2) amd (4) might be known.......!!!!!

Answer 2

When two chemicals react in an endothermic reaction the new substance will need more energy to form its chemical bonds than the old substance will release.

Explanation:

• Endothermic reactions, in general, are those that absorb (or use) energy. In endothermic reactions, more energy is absorbed when bonds in the reactants are broken than is released when new bonds are formed in the products.
• Normally, when a chemical bond is broken, energy is released in the process. The chemical bond formation also demands an energy input.
• The energy that is supplied/released can come in varieties (such as heat, light, and electricity). The formation of chemical bonds following the absorption of heat from the environment characterizes endothermic processes.