1.When two systems that have the same temperature are put in contact with each other, is there heat transfer going on? 2.When two systems that have different temperatures are put in contact with each other, is there going to be heat transfer? Explain.

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

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!

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n