For a wind farm to be affective it needs to be in a place with a. constant wind b. no wind c. high average wind speeds d. low average wind speeds

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.

Which of the following would have the lowest average kinetic energy