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-Dominant- [34]
3 years ago
13

Color is an example of

Chemistry
1 answer:
Nuetrik [128]3 years ago
3 0

Answer:

a physical property

Explanation:

Color does not change state.

- Hope that helped! Please let me know if you need further explanation.

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In the following overall chemical reaction, aluminum displaces chromium from chromium(III) oxide and forms aluminum oxide.
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Answer:

Change in enthalpy for the reaction is -536 kJ

Explanation:

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--------------------------------------------------------------------------------------------------------------

2Al+Cr_{2}O_{3}\rightarrow 2Cr+Al_{2}O_{3}....\Delta H=\Delta H_{1}+\Delta H_{2}=-1675.7+1139.7kJ=-536kJ

6 0
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1.) Activation energy is _____.
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(1) Activation energy is the amount of energy that is needed for the reaction to proceed, converting the reactant to products. The answer is letter B.

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