In an exothermic reaction, the enthalpy change is negative. which of the following is also true for an exothermic reaction? a. the products have a lower potential energy than the reactants. b. the reactants have a lower potential energy than the products. c. the potential energy of both the reactants and products is the same. d. the potential energy decreases, and then increases sharply at the end of the reaction.
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Chemistry, 22.06.2019 06:00
24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm
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Chemistry, 22.06.2019 10:30
Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.
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Chemistry, 22.06.2019 14:50
Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape
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Chemistry, 23.06.2019 00:30
Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms
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In an exothermic reaction, the enthalpy change is negative. which of the following is also true for...
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