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Sleep Deprivation Essay

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Below is an essay on "Sleep Deprivation" from Anti Essays, your source for research papers, essays, and term paper examples.

Name: ___________________________________ Date: ______________

Practice Test #3
____ 1. When a precipitation reaction occurs, the ions that do not form the precipitate A) evaporate B) are cations only C) form a second insoluble compound in the solution D) are left dissolved in the solution E) none of these 2. An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The complete ionic equation contains which of the following species (when balanced in standard form)? A) B) C) D) E) ____ 3. An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The net ionic equation contains which of the following species (when balanced in standard form)? A) B) C) D) E) No net ionic equation exists for this reaction. ____ 4. All of the following are clues that a chemical reaction has taken place except A) A color change occurs. D) Bubbles form. B) A solid forms. E) A flame occurs. C) The reactant is smaller. 5. When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type? Al + Fe3 O4 A) 1 ____ Al2 O3 + Fe B) 3

____

____

C) 6

D) 9

E) 12

6. When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type? CH3 OH + O2 A) 1 CO2 + H2 O B) 2

C) 3

D) 4

E) 6

____

7. Which of the following statments is not true of balancing a chemical equation? A) Subscripts in the reactants must be conserved in the products. B) Coefficients are used to balance the atoms on both sides. C) The law of conservation of matter must be followed. D) Phases are often shown for each compound but are not critical to balancing an equation. E) All of the above statements (a-d) are true. 8. Which of the following statments is not true of balancing a chemical equation? A) Subscripts in the reactants must be conserved in the products. B) Coefficients are used to...

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Sleep Deprivation. Anti Essays. Retrieved December 16, 2018, from the World Wide Web: http://trenmayamx.com/free-essays/Sleep-Deprivation-191439.html