Why is calgon conditioning better than phosphate conditioning?

Where can i find naap lab answers sheet/key?

Asmall amount of a solid is added to water. the observation made after fifteen minutes is shown in the figure. which of these solids has been probably added to water? a) oil b) sand c) sugar d) wood chips

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a