1. What type of structure does ozone have? A. Ring Structure
B. Stable Structure
C. Resonance Structure
D. Instable Structure

2. Bond properties differ between covalent bonds of varying lengthe.
A. True
B. False

3. A triple bond is shorter than a double bond.
A. True
B. False

4. Covalent bonds can only exist as O-bonds.
A. True
B. False

question 1 : C

question 2: am not sure

question 3 : A

question 4 : what is O-bonds?

Explanation:

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.