Calculate the number of moles of CuSO4 that were in the impure sample of CuSO4(s).

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. if you look search electronic symbol on google and then click on wiki it shows you a

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.