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What is Hand Warmer Design Challenge Lab about?

1) The document describes an experiment to design an effective hand warmer that meets certain criteria. Students will determine which substances and amounts produce a hand warmer that increases in temperature by 20°C as quickly as possible using safe, inexpensive, and environmentally friendly chemicals. 2) When ionic compounds dissolve in water, they can either absorb or release heat depending on whether more energy is required to break bonds or is released in forming new bonds. Certain factors like the c

Author

molly

Language

EN