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Cumulative Exam Semester II Review Questions and Answers 100% Pass

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Cumulative Exam Semester II Review Questions and Answers 100% Pass What determines the overall change in enthalpy for a reaction? The reactants and the products The reaction conditions The intermediate steps The temperature and pressure Which type of mixture does not exhibit Brownian motion and includes two distinct phases? a suspension a solution a colloid a homogeneous mixture What is the purpose of adding citric acid to food? To add tartness To preserve freshness 2 To enhance sweetness To alter color What term describes the average kinetic energy of the particles in a system? Temperature Heat Pressure Density According to Hess's law, what is true about the enthalpy change when combining a series of intermediate reactions? It equals the sum of the enthalpy changes of the individual reactions. It is the difference between the initial and final states. It is independent of the steps involved. It can only be determined experimentally. When an ice cube is placed in a glass of milk at 20°C, how is kinetic energy (KE) transferred between the substances?

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