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belka [17]
4 years ago
12

A sea turtle is 3feet below the surface of the sea ??? Help me ple

Chemistry
1 answer:
valentina_108 [34]4 years ago
7 0
I think I THINK it would be the surface of the sea ?
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You add 8.5 g of iron to 27.90 mLof water and observe that the volume of iron and water together is 28.98 mL calculate the densi
Verdich [7]

Answer:  7.87 g/ml

Explanation:

(28.98 ml - 27.90ml) = 7.87 g/ml

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Consider the motion diagram. It illustrates a car's velocity (V) and acceleration (A). The BEST description of a car’s velocity
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Explanation:

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3 years ago
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A scientist measures the standard enthalpy change for the following reaction to be -327.2 kJ : P4O10(s) 6 H2O(l)4H3PO4(aq) Based
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Answer:

ΔH°f P4O10(s) = - 3115.795 KJ/mol

Explanation:

  • P4O10(s) + 6H2O(l) ↔ 4H3PO4(aq)
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∴ ΔH°rxn = - 327.2 KJ

∴ ΔH°f H2O(l) = - 285.84 KJ/mol

∴ ΔH°F H3PO4(aq) = - 1289.5088 KJ/mol

⇒ ΔH°rxn = (4)(- 1289.5088) - (6)(- 285.84) - ΔH°f P4O10(s) = - 327.2 KJ

⇒ ΔH°f P4O10(s) = - 5158.035 + 1715.04 + 327.2

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5 0
4 years ago
Calculate AH°rxn from AH°7 values (use table in textbook appendix) a) Cl2 (g) + 2 Na (s) -› 2 NaCl (s) EITHER -411.1kJ/mol b) 2
MrMuchimi

To find AH°rxn, we use the following equation:

What we're going to do is to sum the enthalpy of the products and then substract with the enthalpy of the reactives:

As you can see, we need to multiply by the coefficients of the reaction.

Now, just replace the values of the table:

So the answer is -822.2kJ/mol.

For b:

Now, just replace the values of the table:

The answer for b is -1036kJ/mol.

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1 year ago
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Bess [88]

Answer:

Carbon based life forms

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4 years ago
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