water flows over niagara falls at the average rate of 2,400,000 kg/s and the average height of the water falls is about 50m. knowing that the gravitational potential energy of falling water per seccond = mass (kg) x height (m) x gravity (9.8m/s) what is the power of niagara falls how many 15 led lights bulbs could it power ?

Write the complete balanced equation for the reaction between lead (iv) oxide (pbo2) and water (h2o).

Acontainer holds 35.8 moles of gas under 10.0 atm of pressure at 70.0 c. what is the volume of the container?

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!