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kiruha [24]
3 years ago
15

If the enthalpy value for a reaction is negative, what does that indicate about the reaction?

Chemistry
2 answers:
KengaRu [80]3 years ago
8 0

The correct answer is It's exothermic and heat is released to the surroundings  

likoan [24]3 years ago
7 0
This indicates that the reaction is exothermic meaning that it releases heat/energy
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Which statement describes the masses of the particles that make up an atom?
Novay_Z [31]
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Which of the following is an example of electrical energy being converted to chemical energy?
marishachu [46]

The correct answer is option D, that is, a storage battery is charged using an electric current.  

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In the given question, the charging of a storage battery using electric current is an example of electrical energy being converted into chemical energy.  


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3 years ago
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neonofarm [45]
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3 years ago
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Explain Charles law​
kodGreya [7K]

"Charles Law" is the relationship between "volume-temperature" (V ∝ T).

<u>Explanation</u>:  

Charles Law is basically volume-temperature relationship (V ∝ T). French scientist “Jacques Charles” in 1787 studied effect of temperature on the volume of gases at constant pressure, which described how gases manage to expand when heated. Law stated as “At constant pressure, the volume of a given "mass" of a gas decreases or increases by 1/273 of its volume at 0^{\circ} \mathrm{C} for each one degree rise or fall in temperature”. Formula derived from law is as follows: \mathbf{V}_{\mathbf{t}}=\mathbf{V}_{0}[\mathbf{1}+\mathbf{t} / \mathbf{2} 7 \mathbf{3}] here {V}_{0} is volume of given mass of a gas at 0^{\circ} \mathrm{C}, {V}_{t} is its volume at any temperature t^{\circ} \mathrm{C}. Application of Charles law is hot air balloons.

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The cation that has the same number of electrons (isoelectronic) as Ne is
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Ne is isoelectronic with Na+ ion.
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