Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar. The following chemical equation shows the combustion of ethane. Balance the equation by filling in the coefficients.

C2H6 +
O2 →
CO2 +
H2O

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls