When your classmates sweat over calorimetry, they forget: the ice at 0°C first drinks heat to melt, becoming water at 0°C, *then* it warms up. So, set your equation as heat lost by warm water = heat gained to melt ice + heat gained to warm that melted ice. Every evening, watering my baccas with the drip system, I see how things need the right steps, not just the final temperature; a seedling won't grow if you skip the sprouting.
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