3 years ago

What two kinds of properties give a substance its unique identity, and what are some examples of each?

1 answer:

5 0

Some physical properties would be:
appearance, odor, density, and magnetism.
Some chemical properties would be:
flammability, reaction to water oxygen or acid, decomposition caused by light or heat, and tendency to corrode.
Hope this helps. (;

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madreJ [45]

Answer:

$470\frac{KJ}{mol}$

Explanation:

The activation energy represents the energy barrier that reagents must pass to transform into products (or products to transform into reagents in a reverse reaction)

For any reaction, the change in enthalpy is related to the activation energy by the equation

$\Delta H =E_{a\ direct}-E_{a\ reverse}$

So, the activation energy for the reverse reaction is

$E_{a\ reverse}=E_{a\ direct}-\Delta H =218 \frac{KJ}{mol} - (-252)\frac{KJ}{mol}=470\frac{KJ}{mol}$

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kvv77 [185]

Answer:

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4 years ago

in general, as the temperature increases, the solubility of gases in water ____ and the solubility of most solids in water___

saul85 [17]

Answer:

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Solnce55 [7]

Nuclear explosion i hope that correct

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