Is an enzyme used up in a chemical reaction?

yes

Explanation:

Enzymes are really important cause they help speed up chemical reactions

As far as I'm concerned enzymes are in your saliva or specific fruits it helps digest food.

d bonding propertys

explanation:

carbon can form so many different compounds not just with oxygen

this website is for anybody really not just for girls just saying, also while a lot of males are mean and you know there are the few who are kind and then there's the nice-guys but then theirs also guys like me who are shy we don't get out much because there are people like you who exist who would most likely punch a guy in the face so next time just think about things before you post them to a website where guys and girls can see your question.