Explain how you can use a wire and a battery to create a magnetic field.

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

What is the mass of 4 molecules of co2

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!