The answer is C. 146g because you add all of the masses of the individual elements and then mulyiply by 1.72 to get your answer.
Isotope- variation of an element
Sixteen- atomic number of oxygen
The answer is motion, this is what I would go with because when you are dealing with gases it puts motion in the term of particles.
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
