3 years ago

Group them useful or harmful. Write the number of your answer in the appropriate box

Chemistry

1 answer:

nikdorinn [45]3 years ago

8 0

Answer:

Soap-wag mo ilalagay sa mata

alcohol same with the soap

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A sample of water at 100°C is converted to steam after absorbing 820 kJ of heat. How grams of H2O are contained in the sample? A

Varvara68 [4.7K]

Since water is already at 100<span>°C all the energy is used to evaporate it.
Now we can calculate how many </span>mols of water are evaporated with 820kJ.
$N= \frac{820}{41} =20 mol$
We calculated that we got 20 mols of water evaporated. Now, all we have to do is find how many grams is a mol of water. Molar mass of water is <span>20.16 g/mol.
</span>The final answer is:
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Answer:

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As you move from left to right across the periodic table elements ?

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Group them useful or harmful. Write the number of your answer in the appropriate box​

Group them useful or harmful. Write the number of your answer in the appropriate box