What is the name of that equipment she is using

There are 6.022 x 10^23 atoms of hg in 1 mole of hg. the number of atoms in 4.5 moles of hg can be found by multiplying 4.5 by 6.022 x 10^23 a. 2.7 x 10^24 b. 27 x 10^23 c. 2.71 x10^24 d. 27.099 x 10^23

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

How many moles of bromine are needed to produce 3.23 moles of potassium bromide