What are the defining characteristics of a condensation reaction? a. Two monomers are covalently bonded together and a water molecule is produced. b. Two monomers are covalently bonded together and a water molecule is used up. c. A polymer is broken down into monomers and a water molecule is produced. d. A polymer is broken down into monomers and a water molecule is used up.

Video transcript

Welcome back. Our next question says a condensation reaction is when two or more molecules blank with simultaneous blank of small molecules such as water. So we can kind of get a hint from the name condensation. Imagine condensation appearing on your glass, water seemingly being removed from the air and appearing on your glass. So in this case a condensation reaction, you have two or more molecules combining often to form a polymer and when they combine, they covalin tli bond to each other and in the formation of that covalin bond, you lose a small molecules such as water from the source molecule. So water, a small molecule of water or other small molecules is produced with the formation of the covalin bond between those molecules that are reacting. So our first blank here should be the word combined. Two or more molecules combined with simultaneous loss will be our second blank. So let's look at our answer choices to see which has the correct words. Choice A and D. Have combined as the first word. So we're going to eliminate choices B and C. Then let's look at the second word. Choice A has loss, which is what we're looking for. So choice A must be correct. Choice D. Instead has absorption but the water is not being absorbed, it's being lost in the formation that bond. So choice D. Is not correct. So, a condensation reaction is when two or more molecules as choice A combined with simultaneous loss of small molecules such as water. See you in the next video