Question

c. what happens to the bond in glucose and oxygen and what new molecules are formed? old bonds break: new bonds form: as a result, energy multiple-choice questions glucose + oxygen carbon dioxide + water

Explanation:

To answer the question about the bonds in glucose and oxygen and the new molecules formed, we analyze the process of cellular respiration (or combustion of glucose).

For "Old bonds break":

In the reaction involving glucose (\(C_6H_{12}O_6\)) and oxygen (\(O_2\)), the old bonds that break are the covalent bonds within the glucose molecule (e.g., C - C, C - H, C - O bonds) and the double bond in the oxygen molecule (\(O = O\)). The reactants here are glucose and oxygen, so the bonds in "glucose + oxygen" break.

For "New bonds form":

After the old bonds break, new covalent bonds form to create the products of the reaction. The reaction of glucose with oxygen (cellular respiration or combustion) produces carbon dioxide (\(CO_2\)) and water (\(H_2O\)). So the new bonds form in "carbon dioxide + water" as these are the new molecules created.

For the new molecules formed:

The reaction is \(C_6H_{12}O_6 + 6O_2
ightarrow 6CO_2 + 6H_2O + \text{energy}\). Thus, the new molecules formed are carbon dioxide and water.

Answer:

• Old bonds break: glucose + oxygen
• New bonds form: carbon dioxide + water
• New molecules formed: carbon dioxide + water