Yes, energy is given off when chemicals react. Since energy can be heat or light it is also given off.
They lower the activation energy needed to start a chemical reaction.
Chemicals React was created on 2006-06-15.
When CFC chemicals are released into the air the chemicals react with the ozone layer to thin it. The sun's ultraviolet radiation can then get to the earth.
Energy.
The majority of chemicals can react.
well chemicals are different and most react differently. it depends on the chemical, really.
Fluorine has the highest electronegativity of any element. Therefore, the energy released when hydrogen and fluorine react is greater than the energy released when hydrogen and bromine react, and that energy must be resupplied to cause either bond to break.
energy is released
No.
chemicals
yes
That depends which chemicals you are using, certain chemicals react a lot faster or heavier than others.