What is the fee for a law and rules book

Chemistry

1 answer:

aivan3 [116]2 years ago

7 0

$14.00

fee for a Law and rule book

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If there are no changes in the oxidation state of the reactants or products of a particular reaction, that reaction is not a red

dmitriy555 [2]

Yes, that is true. in order for it to be a redox reaction, both oxidation and reduction must be occurring.

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3 years ago

water absorbs and releases large amounts of heat before its temperature changes because water has a high

barxatty [35]

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Given these reactions, X ( s ) + 1 2 O 2 ( g ) ⟶ XO ( s ) Δ H = − 668.5 k J / m o l XCO 3 ( s ) ⟶ XO ( s ) + CO 2 ( g ) Δ H = +

qwelly [4]

<u>Answer:</u> The $\Delta H^o_{rxn}$ for the reaction is -1052.8 kJ.

<u>Explanation:</u>

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

According to this law, the chemical equation is treated as ordinary algebraic expressions and can be added or subtracted to yield the required equation. This means that the enthalpy change of the overall reaction is equal to the sum of the enthalpy changes of the intermediate reactions.

The given chemical reaction follows:

$X(s)+\frac{1}{2}O_2(g)+CO_2(g)\rightarrow XCO_3(s)$ $\Delta H^o_{rxn}=?$