43579
energy transfer
- in a reaction
- can be taken in or given out as heat energy
- combustion
- exothermic reaction
- heat is given out
- exo
- heat is given out
- exothermic reaction
- endothermic reaction
- takes in heat
- endo
- takes in heat
- temperature changes
- helps decide if the
reaction is exo or endo
- helps decide if the
reaction is exo or endo
- energy & bonds
- energy must be
supplied to break
bonds
- energy is always
released when bonds
are formed
- in reactions old bonds are broken and new bonds are formed
- NaCL -ENERGY> Na + CL
- endo
- endo
- Mg + O -> MgO + ENERGY
- exo
- exo
- energy must be
supplied to break
bonds
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