Consider the newly discovered element Steppium. Analysis of the element revealed that the average mass was 35.45 amu and the presence of two isotopes. The isotopes had masses of 34.9689 and 36.9695 with the lighter isotope present in grater abundance. What are the percent abundances of the two isotopes of Steppium. Please provide an explanation :)

What provides structure to the human body?

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction