Calculate the mass of a solid metal cylinder with a density of 2.6 g/cm", a diameter of 1.8 cm, and a length of 4 cm.

V= π ×r² × h

V = 3.14 × (0.9)² × 4

V = 3.14 × 0.81 × 4

V = 10.1736

Mass = Volume × density

M = 10.1736 × 2.6

M = 26.45136 g

r just means there's a number of carbon in teh chain. for example rcooh means that after x number of carbon, the chain ends with cooh.

explanation:

i think it's c. i'm not sure but i think so.