Answer:
Sprinkling of powder on the carom board <u>reduces</u> friction.
Thallium has got 81 protons
<u>Have a nice days.......</u>
Answer is: <span>functional groups.
</span>Functional groups<span> are specific </span>groups<span> that are responsible for the characteristic chemical properties of molecule.</span>
<span>Proteins have nitrogen and oxygen in functional group.
Nucleic acids and some lipids have phosphorus in fuctional group.
Carbohydrates have oxygen in functional group for example.</span>
i can think of 3 subatomic particles found in a nucleus protons, neutrons, and electrons
