In the following reaction: Ca+2 + 2Br- ---> BaBr2, which of the reactants is LEO and which is GER?

1 answer:

5 0

Chemical Reaction : Ca+2 + 2Br- ---- CaBr2

The answer: LEO is Bromine (Br-1); the oxidation state changes from (0 to -1) and GER is Calcium (Ca+2); the oxidation state changes from (0 to +2).

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klio [65]

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2 years ago

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DENIUS [597]

Answer: The rate increases 3 times on raising the temperature from 20degree to 30 degree

Explanation:

According to Arrhenius equation with change in temperature, the formula is as follows.

$ln \frac{k_{2}}{k_{1}} = \frac{-E_{a}}{R}[\frac{1}{T_{2}} - \frac{1}{T_{1}}]$

where $k_2$ = rate constant at temp $T_2$

$k_1$ = rate constant at temp $T_1$

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$T_1$ = temperature = $20^0C=(20+273)K=293K$

$T_2$ = temperature = $30^0C=(30+273)K=303K$

$ln \frac{k_{2}}{k_{1}} = \frac{-85\times 1000J/mol}{8.314J/Kmol}[\frac{1}{303} - \frac{1}{293}]$

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Thus rate increases 3 times on raising the temperature from 20degree to 30 degree

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2 years ago

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pishuonlain [190]

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I hope this helps you;);