Help with number 9! Thank you!:)

Choose all that apply. when creating a graph, you should: determine the x- and y- variables label the scale on the x- and y- axes plot the data points draw a line of best fit to represent the data trend

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

What are the first three quantum numbers for the electrons located in subshell 2s?