If the pOH of a nitric acid (HNO3) solution is measured as 11, what is the concentration of HNO3 solution? 1 × 10^-11 M
2 × 10^-3 M
1 × 10^-3 M
3 × 10^-3 M

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

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!