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The DeltaH values for reactions of , ...

The `DeltaH` values for reactions of ,
`C(s) + 1/2 O_2 (g) to CO(g) DeltaH =-100 KJ`
`CO(g) + 1/2 O_2 (g) to CO_2 (g) DeltaH = 200 KJ`
The heat of reaction for `C(s) + O_2 (g) to CO_2 (g) ` is

A

`-300 KJ`

B

`-100 KJ`

C

`-150 KJ`

D

`-50 KJ`

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The correct Answer is:
A
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