Igneous that can be changed by heat and pressure which can change the form of the rock
<u>Answer:</u> The percent yield of the compound is 30.86 %.
<u>Explanation:</u>
To calculate the percentage yield of a compound, we use the equation:

Experimental yield of compound = 25 g
Theoretical yield of compound = 81 g
Putting values in above equation, we get:

Hence, the percent yield of the compound is 30.86 %.
Chemical reaction is given as :

Here, 2 moles of water gives 2 moles of hydrogen and one mole of oxygen.
Mass of hydrogen = 28.0 g (given)
Mass of oxygen = 224.0 g (given)
Number of moles = 
Thus, number of moles of hydrogen = 
= 14 moles of hydrogen
Number of moles of oxygen= 
= 7 moles of oxygen
Now, to find the amount of water:

= 252 g of water.
Thus, amount of water is 252 g (involved in the process).
Answer:
Original price: $
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Discount percentage:
20
%
Explanation:
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