What is the coefficient in this chemical formula? 3C6H12O6 A. 12

B. 18

C. 3

D. 6

One mole of zinc has a mass of 65.4 grams. approximately how many atoms of zinc are present in one mole of zinc? 32 × 1023 atoms 6 × 1023 atoms 66 atoms 65 atoms

Why is it that 85.48 rounded to two significant figures is 85 and not 86?

Which of the following statements best explains why chemistry is testable a) it can measure data by experiments b) it cannot add new evidence c) it cannot be verified d) it is biased