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To calculate the energy released in this reaction, we can use the formula:

q = m * c * ΔT

where: q = energy released or absorbed (in Joules) m = mass of the water (in grams) c = specific heat of water (in J/g°C) ΔT = change in temperature (in °C)

Given: m = 150.0 g c = 4.184 J/g°C ΔT = (final temperature - initial temperature) = (29.0 °C - 22.0 °C) = 7.0 °C

Plugging these values into the formula:

q = 150.0 g * 4.184 J/g°C * 7.0 °C

Calculating:

q = 43935.6 J

Therefore, the energy released in this reaction is 43935.6 Joules.

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