What substance are yielded on heating?
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Explanation:
Many commercially available hot packs utilize common and safe chemicals to generate heat.
Calcium Chloride. One of the simplest chemical hot packs possible involves dissolving calcium chloride, also known as rock salt, into water.
Magnesium Sulfate.
Sodium Acetate .
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If a substance is heated, energy is added and the particles will become more active; vibrating, rotating and even moving about faster. ... For pure substances, the temperature at which this change occurs is quite precise and is called the melting point of the substance.
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