Day 116: Marshmallow Modeling

IMG_4002

IS students are working on understanding how acids and bases dissociate in water. The reactions can be modeled with marshmallows and it is the one activity in the text that we have that I feel is worthwhile. The marshmallow models are particularly good when trying to understand how ammonia forms a base in water. In the photo, a generic acid HA dissociates in water to form H3O+ and A-.

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