Which of the following statements regarding energy changes during a reaction are true? . 1) if the heat of reaction, δh, is negative, the energy of the products is higher than the energy of the reactants, and the reaction is endothermic.2)two or more atoms must collide, with proper orientation, with energy greater than or equal to the activation energy for a reaction to occur.3)when the activation energy is high, the reaction rate is fast.4) the energy of a collision between atoms or molecules must be greater than the activation energy (ea) for bonds to be broken.
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Chemistry, 22.06.2019 05:30, jameskarbar9p8c9d2
Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat
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Chemistry, 22.06.2019 06:30, coreyslotte
Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
Answers: 2
Which of the following statements regarding energy changes during a reaction are true? . 1) if the h...
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