Chemistry
Chemistry, 17.07.2019 18:00, chrisgramjooooo2366

Cold packs are designed to become very cold when activated. when the pack is activated, a chemical reaction occurs to make the temperature of the cold pack do you create. what must be true of this chemical reaction? a. reaction releases energy into it surroundings b. products and reactants have the same amount of energy c. i don’t have plus i don’t hate him i reactants. d. the reaction absorbs energy from at surroundings

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Chemistry, 29.07.2019 14:30, nick607
Cold packs are designed to become very cold when activated. when the pack is activated, a chemical reaction occurs to make the temperature of the cold pack decrease. what must be true of this chemical reaction? (2 points) a. the reaction releases energy to its surroundings. b. the products and reactants have the same amount of energy. c. the products have less energy than the reactants. d. the reaction absorbs energy from its surroundings.
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Biology, 19.08.2019 14:30, leriscepowell3654
Cold packs are designed to become very cold when activated. when the pack is activated, a chemical reaction occurs to make the temperature of the cold pack decrease. what must be true of this chemical reaction? a. the reaction releases energy to its surroundings. b. the products and reactants have the same amount of energy. c. the products have less energy than the reactants. d. the reaction absorbs energy from its surroundings.
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Chemistry, 06.10.2019 11:30, SAMANTHA1982
Cold packs are used to treat minor injuries. some cold packs contain nh4no3(s) and a small packet of water at room temperature before activation. to activate this type of cold pack, the small packet must be broken to mix the water and nh4no3(s). the temperature of this mixture decreases to approximately 2°c and remains at this temperature for 10 to 15 minutes. state the direction of heat flow that occurs when the activated cold pack is applied to the body. identify both types of bonds in the nh4no3(s).
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Chemistry, 08.11.2019 03:31, Gattuso
Commercial cold packs and hot packs are available for treating athletic injuries. both types contain a pouch of water and a dry chemical. when the pack is struck, the pouch of water breaks, dissolving the chemical, and the solution becomes either hot or cold. many hot packs use calcium chloride, and many cold packs use ammonium nitrate. write reaction equations to show how these strong electrolytes break apart in water. (include states-of-matter under the given conditions in your answer. use the lowest possible whole number coefficients.)
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