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hichkok12 [17]
3 years ago
11

After swimming in the pool on a very hot day, Sarah had a glass of ice water. Over time, the water on her skin evaporated, and t

he ice cubes melted in the glass. How
many states of water existed in this scenario?
A. 3
B. 1
C. 4
D. 2
Chemistry
2 answers:
Art [367]3 years ago
7 0

I am sure the answer is A

BigorU [14]3 years ago
3 0
The answer is A because the ice in the glass started off as a solid and is now a liquid.Then it melted,and the water on her skin evaporated.
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Please check this for me?
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The answer is 
<span>2PbS(s) + 3O2(g) = 2PbO(s) + 2SO2(g)

Your answer is not yet balanced because you have 3 oxygen atoms. it should be balanced by multiplying both side by 2 such as the balanced equation I made. To check it, I will explain why your answer is not yet balanced.

check: (from your equation)
</span> 1-Pb-1
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the difference between the reactant and the product of Oxygen will prove that it is not yet balanced.

If you use 2PbS(s) + 3O2(g) = 2PbO(s) + 2SO2(g), to check it:
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then this is now balance
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