Examine these two MSDS from different manufacturers for sodium hydroxide (NaOH). Compare and contrast the following aspects: chemical names, chemical properties, order of components, health hazards, and proper disposal. Click on each of the links to examine two MSDS reports from different sources.

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!

Find the mass, in grams, of 5.00*10^23 molecules of f2

What is the source of continuous heat and energy that we receive from the sun