PLEASE HELP I WILL GIVE BRAINLIST TO THE CORRECT ANSWER! Using the H-R diagram provided, plot points on the given graph for the stars you researched. Use the circle tool to plot a point. Use the text box tool to label each point with the appropriate star name. The stars are Sun, Alpha Centauri A, Sirius B, Barnard’s Star, Sirius A, and Proxima Centauri. Those are the stars. (repost)

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?

Assume that 13.5 g solid aluminum (al) react with hcl to produce solid aluminum chloride (alcl3) salt and gaseous hydrogen (h2) at standard temperature and pressure.