Hey, if you give me the reasons of the answer will mark as brainliest. 20) Number of Potassium ions in 100 gm of Potassium sulphate ions.

a)230
b)13.8x10²³
c)115
d)6.9x10²³

What is the effect of returning nuclear reactor cooling water back into bodies of water?

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.

The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3