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Inessa [10]
3 years ago
12

Which technique would be best for separating sand and water?

Chemistry
1 answer:
ipn [44]3 years ago
3 0

Answer:

A. filtration

Hope it helps

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For the reaction2 C4H10 (g) + 13 O2 (g) → 8 CO2 (g) + 10 H2O (g)ΔH° is -125 kJ/mol and ΔS° is +253 J/K ∙ mol. This reaction is _
ivanzaharov [21]

Answer:

C. spontaneous at all temperatures

Explanation:

The spontaneity of  reaction is determined by the sign of the  gibbs free energy.

A negative sign denotes that the reaction is spontaneous, positive sign means the reaction is not spontaneous.

From the question;

ΔS° = +253 J/K

ΔH° = -125 kJ/mol

ΔG = ΔH°  - TΔS°

From the data given, the condition in which we can obtain a negative value of G, is at any value of T.

For any value of T, G would always be a negative value.

This means the correct option is option C.

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3 years ago
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Answer:

2h+02=h20

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2 in front of h on left side

2 in front of h on right side

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What evidence is there that marker ink is a mixture
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What is the charge of a magnesium ion?
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