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Alexeev081 [22]
3 years ago
9

C como Se define una cuenca hidrogaticaAyudaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa​

Chemistry
1 answer:
sladkih [1.3K]3 years ago
7 0

Answer:

Una cuenca es un área de tierra que drena todos los arroyos y la lluvia a una salida común, como la salida de un embalse, la boca de una bahía o cualquier punto a lo largo del canal de un arroyo.

Explanation:

Espero que esto ayude a marcar el MÁS CEREBRAL !!!

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Answer:

c.

Explanation:

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3 years ago
How many atoms are there in 5.70 mol of hanfnium?
ANTONII [103]

The correct answer would be 3.49 times 10^ minus 24 molecules

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The following thermochemical equation is for the reaction of Fe 3 O 4 (s) with hydrogen (g) to form iron and water vapor Fe 3 O
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Answer:

41.3kJ of heat is absorbed

Explanation:

Based in the reaction:

Fe₃O₄(s) + 4H₂(g) → 3Fe(s) + 4H₂O(g) ΔH = 151kJ

<em>1 mole of Fe3O4 reacts with 4 moles of H₂, 151kJ are absorbed.</em>

63.4g of Fe₃O₄ (Molar mass: 231.533g/mol) are:

63.4g Fe₃O₄ × (1mol / 231.533g) = <em>0.274moles of Fe₃O₄</em>

These are the moles of Fe₃O₄ that react. As 1 mole of Fe₃O₄ in reaction absorb 151kJ, 0.274moles absorb:

0.274moles of Fe₃O₄ × (151kJ / 1 mole Fe₃O₄) =

<h3>41.3kJ of heat is absorbed</h3>

<em />

6 0
3 years ago
Please help answer this 6 min left in class
vova2212 [387]

Answer:

not sure but i think is B

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hope this help.

6 0
3 years ago
Can someone help me answer these 2 questions
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3 years ago
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