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Chemistry 7 Online
Tyrion:

A student has a petri dish and several marbles. Which of the following activities should the student perform to demonstrate phase transition from a liquid to solid? Placing a few marbles in the petri dish and shaking them vigorously to represent removal of energy Packing the petri dish with two layers of marbles and slowly jiggling them to represent removal of energy Packing the petri dish with two layers of marbles and slowly jiggling them to represent addition of energy Placing a few marbles in the petri dish and shaking them vigorously to represent addition of energy

KingPizza:

first what has more energy-a solid or a liquid?

KingPizza:

if you figure that out, the you can eliminate two of the answers

Tyrion:

its the 3rd one

new2luv:

@tyrion wrote:
its the 3rd one
yes

KingPizza:

@new2luv wrote:
@tyrion wrote:
its the 3rd one
yes
I don't agree with this because a solid has less energy than a liquid

KingPizza:

so what answer do you think it is now

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