What mass of Carbon dioxide will be produced when 144 grams of Carbon reacts with 384 grams of Oxygen gas? (write the chemical equation too!)

Which best describes why nh4+ can form an ionic bond with cl-?

An observation that requires measurement is called quantitative observable or qualitative

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!