1. Calculate the energy needed to break all the bonds 0.0960g of oxygen gas, 2.If the energy required to break bonds


1. Calculate the energy needed to break all the bonds 0.0960g of oxygen gas,
2.If the energy required to break bonds is greater than the energy transferred to the surroundings when bonds are made, will the reaction be exothermic or endothermic
3. What is meant by the bond energy of a chemical bond?
4.Write the balanced symbol equations and calculate the energy changes for the following chemical reactions:
hydrogen + chlorine -> hydrogen chloride
hydrogen + oxygen -> water


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