The decomposition of NI3 to form N2 and I2 releases −290.0 kJ of energy. The reaction can be represented as 2NI3(s)→N2(g)+3I2(g), ΔHrxn=−290.0 kJ Find the change in enthaply when 20.0 g of NI3 decomposes.

beta decay is the answer

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explanation:

the ratio of the conjugate base to the acid required to attain the desired ph.