Select the answer that BEST completes the following statement: Chemical reactions in living systems occur in an __________ environment, within a narrow range of temperatures.

If the isotope ³²S has 16 protons and 16 neutrons, how many protons, neutrons, and electrons will the isotope ³⁵S have, respectively?

Avogadro's number was established as the total number of units (atoms or molecules) in a mole, and a mole of any substance is X grams of it, where X is equal to the substance's molecular weight.A standard unit, the mole, allows scientists to calculate concentrations of materials dissolved in solutions.
Example: Sulfur has a molecular weight of 32.Therefore, 32 g of sulfur = 1 mole of sulfur = 6 × 10²³ sulfur atoms.
How many moles and atoms, respectively, are there in 120 grams of sulfur?