Which group of elements are the most important for living organisms? \
a. carbon, lead, and tin
b. carbon, nitrogen, and oxygen
c. boron, aluminum, and nitrogen
d. arsenic, antimony, and oxygen

B- Carbon nitrogen and oxygen. All organisms are made up of carbon, oxygen is essential to breath, and nitrogen makes up most of earth's atmosphere.

The answer is b carbon nitrogen and oxygen

Oxygen= 88ghydrogen= 12g

The answer to the question: choose the correct statement.  a) when ethane reacts with fluorine gas the product is less stable.b) addition reactions of unsaturated hydrocarbons and halogens requires a high activation energy.  c)the double covalent bond within unsaturated hydrocarbons requires a lot of energy to break.  d)the double covalent bond within unsaturated hydrocarbons can be broken easily.is: a) when ethane reacts with fluorine gas the product is less stable.