Using the Henderson-Hasselbalch equation, calculate the pH of a buffer solution that is 0.497 M in HCO3- and 0.249 M in CO32-.

Answer explain why it is not possible to deduce a complete order of reactivity.

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!