What is the pH of a solution where the concentration of hydrogen ions is 2.40 x 10^-10 M?

Determine the reaction and balance the following equations urgent due in the morning

What is the work done by the electric force to move a 1 c charge from a to b?

According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.