13. Find the total number of atoms present in the following molecules. a. 5 H₂O b. Zn Cl₂ Please Please help ​

An example of technology is the a. addition of a side group to an organic molecule during synthesis. b. use of a new antibiotic to fight an infection. c. measurement of iron concentration in a water sample. d. study of atomic fusion reactions

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope

What is the mass of 0.750 mole of aluminum oxide, al2o3?