Answer is B. it cant be clustering because that is just putting them carelessly and grouping is different as well.
Answer:
The correct answer is - at high pressure a huge amount of gases can be stored in less volume.
Explanation:
We already know that pressure is inversely proportional to the volume of gas which means if we increase the pressure the volume of gas becomes less.
P = 1/V
So in the scuba divers tank, the oxygen is filled at very high pressure so the high amount of the oxygen can be filled in less volume and which will last for longer than a normal pressure tank can last.
Phenolphthalein turn pink in basic solutions.it turn colourless in acid solution.
Hence options(1)is correct
The attraction of metal ions for mobile electrons
Answer: 48.25 km/h
Explanation:
1) Average speed = total distance / total time
2) Total distance = 97 km + 96 km = 193 km
3) Total time = 2 h + 2 h = 4 h
⇒ Average speed = 193 km / 4 h = 48.25 km/h