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2 years ago

11

You observe an unknown substance under a microscope. You notice that the molecules are tightly packed together and not moving. B

ased on this observation, what phase of matter is this substance likely in?
Your answer:

a. Solid

b. Liquid

c. Gas

d. Plasma

1 answer:

enot [183]2 years ago

8 0

Answer:

The answer would be A because they are tightly packed.

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Now we have to calculate the moles of $H_2O$ .

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$C_5H_{12}(l)+8O_2(g)\rightarrow 5CO_2(g)+6H_2O(l)$

From the balanced reaction we conclude that

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$\text{Mass of }H_2O=\text{Moles of }H_2O\times \text{Molar mass of }H_2O$

$\text{Mass of }H_2O=(1.821mole)\times (18g/mole)=32.78g$

Therefore, the mass of water produced will be 32.78 grams.

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