How do changes in temperature and energy influence chemical change?

Answer 1

chemical reactions that release energy often occur spontanously. Chemical reactions that absorb energy will not occur without a source of energy.

Answer 2

Some reactions absorb energy, some release energy.

How ... There is energy associated with every bond holding the atoms together in a molecule. It takes some energy to break these old bonds and allow new bonds to form. If the new bonds require less energy to hold the atoms in the new molecule then the extra energy is released.

Think of a piece of paper. It just sits there until some small spark (like a match)starts a fire. The end of the paper starts to break down and allows oxygen from the air to combine forming Carbon dioxide along with other molecules. Carbon dioxide uses less energy to hold the atoms together and the extra energy heats up more paper so the fire spreads through the piece of paper. Some extra energy is used to keep the fire going, and some is released to the air.

Answer 3

Chemical reactions involve changes in the arrangement of electrons in atoms and molecules. All atomic nuclei have positive charges and accordingly attract electrons, but some nuclei attract electrons more strongly than others, and when an electron moves from one atom to another, or alters its orbital pattern in some way, to be closer to some nucleus and farther from some other nucleus, there is a corresponding change in energy.

Answer 4

You can experience exothermic reactions where energy is RELEASED from the reaction into the surroundings, OR endothermic reactions where energy is CONSUMED by the reaction from the surroundings.

Answer 5

Chemical reaction is another word for chemical change. Energy can be absorbed and stored for later while burning releases the stored energy.

Answer 6

because the reactants are consumed and new products are formed? if you dont understand that question then you probaly wont undertsand an answer so go read something on chemistry.

Answer 7

In an energy change, energy changes from chemical energy to heat energy. *THIS ALSO HAPPENS IN SEXUAL REPRODUCTION.*

Answer 8

Generally the rate of a reaction is higher when the temperature increase.