CuSO4 is added to 968 mL of water to create a 0.200 mol/LSO4 2- solution. what is the percent by mass of CUS04 in water

How does the motion of particles in a gas change as the gas cools

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!

Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.