Answer:
False. In a gas, particles are in continual straight-line motion. The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other.
Explanation:
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dont know, will let uk in 2 mins
25 gm would be left
45 hours is 3 half lives
200 gm * 1/2 * 1/2 * 1/2 = 25 gm
reacts to form carbondioxide