Answered: 5. What determines the speed at which a…

5. What determines the speed at which a particle of matter moves? A. whether it is in a compound or a mixture B. what its chemical properties are C. how much energy it has D. what its volume is

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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5. Indicate whether the following statements best describes a solid, liquid, or gas a. It has an indefinite shape but a definite volume. b. It takes the shape and volume of the container. c. The particles are packed closely together and have very little movement. d. The particles are far apart and move very rapidly. 6. Consider the following classifications of matter: heterogeneous mixture, homogeneous mixture, element, and compound. a. In which of these classifications must two or more substances be present? (There is more than one answer.) b. In which of these classifications is separation into simpler substances using physical means possible? (There is more than one answer.)
1.Can the states of matter change from one form to another (ex solid to liquid)? Yes or No? How? 2.What do you call the change in the state of matter? 3.What are the processes involved in phase change?
1. A student overheats their beaker during the dehydration of the copper salt, creating black CuO(s) and Cl2 (g). How will this error change the mass of water calculated? Explain. 2. A student overheats their beaker during the dehydration of the copper salt, creating black CuO(s) and Cl2 (g). How will this error change the mass of copper calculated? Explain. You may assume that the student is able to react all of the CuO with the aluminum wire. 3. A student reports an erroneously-high waters of hydration mass but the correct copper mass for their sample. How will this change the mass of chloride calculated? Explain.
7. A student combines pure NaCl (sodium chloride) with pure DI water. The resulting is an example of: a. homogeneous mixture b. heterogeneous mixture c. pure substance d. suspension
4. What is the difference between a mixture and a pure substance?
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Classify each statement as an observation, a law, or a theory. a. Chlorine is a highly reactive gas. b. If elements are listed in order of increasing mass of their atoms, their chemical reactivities follow a repeating pattern. c. Neon is an inert (or nonreactive) gas. d. The reactivity of elements depends on the arrangement of their electrons.
what is an atom? What is it characteristics? How does an atom live and exists in the biosphere?
What is the classification of the substance in the figure? A. element B. homogeneous mixture C. compound D. heterogeneous mixture