Chemistry, 19.09.2019 06:01 hellothere69
Which statement is true about endothermic and exothermic reactions? (5 points) energy is absorbed in an exothermic reaction.
energy is released in an endothermic reaction.
the products have more potential energy than the reactants in an exothermic reaction.
the products have more potential energy than the reactants in an endothermic reaction.
Answers: 1
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If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g
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When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule
Answers: 1
Which statement is true about endothermic and exothermic reactions? (5 points) energy is absorbed i...
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