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aleksandrvk [35]
3 years ago
15

If 45.6 g of Fe2O3 reacts with excess water, how much heat is required?

Chemistry
2 answers:
tangare [24]3 years ago
8 0

Explanation:

I

have not yet learnt chemistry so sorry

Elena-2011 [213]3 years ago
8 0

Answer:

350

Explanation:

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Calculează masa zaharului si volumul apei necesare pentru prepararea 500g de soluție de zahăr cu partea de masa 20%
Sedbober [7]
T = 20 %  : 20 / 100 = 0.2

m1 = solute 

m2 = Solvent

T = m1 / m1 + m2

0.2 = 500 g / 500 g + m2

0.2 * ( 500 + m2 ) = 500

0.2 * 500 + 0.2 m2 = 500

100 + 0.2 m2 = 500

0.2 m2 = 500 - 100

0.2 m2 = 400

m2 = 400 / 0.2

m2 = 2000 g of water

hope this helps!



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Explanation:

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The seeds of a dandelion are wispy and very light. A single dandelion produces many seeds. How does the structure of the seeds r
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