How many molecules are there in 46.0 g of ethanol, CH 3 CH 2OH? 9
46
6.02 x 1023
46 x 6.02 x 1023

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.

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