2NaHCO3(s) + 129kJ → Na2CO3(s) + H2(g) + CO2(g)
This equation indicates that ΔH is and energy must be to complete the reaction.

A) positive; added
B) negative; added
C) positive; released
D) negative; released

what was the answer?! :)

Explanation:

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a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.