HELP!! GIVING 80 POINTS 4.95 g of ethylene (C2H4) are combusted with 3.25 g of oxygen.
(5 Points) Write a balanced equation. (ethylene plus oxygen yields carbon dioxide and water)

(5 Points) What is the limiting reactant? You must show your work.

(5 Points) If the actual yield of Carbon dioxide is 2.50 g, what is the percent yield for the reaction? You must show your work.

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

Which of the following units is not an official si unit

Listenbase your answer to the question on the information below. nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body. cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment. which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61