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JEOPARDY Third Nine Weeks- 9 weeks review ElDoradoHighSchoolAZTECS 100 200 300 400 500.

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Presentation on theme: "JEOPARDY Third Nine Weeks- 9 weeks review ElDoradoHighSchoolAZTECS 100 200 300 400 500."— Presentation transcript:

1

2 JEOPARDY Third Nine Weeks- 9 weeks review

3 ElDoradoHighSchoolAZTECS

4 A: D. all of these S2C04 Jeopardy Review Which of the following are found in pure water? A hydroxide ions B hydronium ions C water molecules D all of these

5 What is the concentration of H 3 O + in pure water at 25 °C? F M G 7.0 M H 10.7 M J 10 7 M A: F. 10 ^-7 S2C04 Jeopardy Review

6 An aqueous solution of sodium hydroxide reacts completely with a solution of hydrochloric acid. After all the water evaporates from the reaction mixture, what will remain? F sodium chloride G chlorohydroxide H sodium oxide J sodium chlorate A: F. sodium chloride S2C04 Jeopardy Review

7 What is the most common oxidation number of combined sodium? F 2 G 1 H 0 J +1 A: J. +1 S2C04 Jeopardy Review

8 In balanced chemical equations, the sum of all the oxidation numbers is — A half of the number of elements B always +1 C always –1 D always zero0 A: D. always zero S2C04 Jeopardy Review

9 In the reaction 2K + Cl 2 → 2K Cl which element(s) is/are reduced? F K only G Cl 2 only H both K and Cl 2 J neither K nor Cl 2 A:G.) Cl 2 only S2C04 Jeopardy Review

10 What are the oxidation numbers in the compound H 2 SO 4 ? A.) H = +1, S = 0, O = 2 B.) H = +1, S = +6, O = -2 C.) H = -1, S = +7, O = 1 D.) H = +1, S = +1, O = 1 A: B. S2C04 Jeopardy Review

11 What are the oxidation numbers in the compound NaCl? A Na = 0, Cl = 0 B Na = +1, Cl = -1 C Na = 1, Cl = +1 D Na = +2, Cl = 2 S2C04 Jeopardy Review A: B.)

12 Which of the following statements is correct regarding oxidation and reduction processes? A Oxidation decreases the oxidation number. B Oxidation increases the oxidation number. C Reduction increases the oxidation number. D Oxidation and reduction have no effect on the oxidation numbers.I 400 A: B. S2C04 Jeopardy Review

13 Which must be present for a piece of iron to rust? A carbon B chlorine C oxygen D sodium 500 A: C.) oxygen S2C04 Jeopardy Review

14 A: A TH S2C04 Jeopardy Review In a redox reaction, the chemical which gains electrons is called the — A oxidizing agent B neutralizer C reducing agent D releasing agent

15 What is the pH of a basic solution A: above 7 S2C04 Jeopardy Review

16 For two acids of equal concentration, the stronger acid has — A a higher concentration of hydroxide ions B a higher pH C a higher concentration of hydronium ions D a stronger bond A: C. S2C04 Jeopardy Review

17 A: F. the naturally occurring isotopes H S2C04 Jeopardy Review Which of the following is used to calculate the average atomic mass of an element? F the naturally occurring isotopes G the five most abundant isotopes H the isotopes that are man made J the least common isotopes

18 How should the students check to make sure that the liquid in the beaker at the start is really the acid instead of the base? F Taste it to make sure it is sour. G Feel it between their fingers, bases are slick. H Check the pH meter reading. J Use all of the above to make sure. A: H. S2C04 Jeopardy Review

19 A sample of fruit juice is found to have a hydrogen ion concentration of 2.87 x What would the pH be? F 2.87 G 3.54 H 4.58 J 8.16 A. G. S2C04 Jeopardy Review

20 What is the correct net ionic equation for the following formula: 1 Na 2 CO 3 (aq) + 1 FeCl 2 (aq)  1 FeCO 3 (s) + 2 NaCl(aq) A. Na + + Cl - → NaCl B. 2Na + + 2Cl - → 2NaCl C. Fe +2 + CO 3 -2 → FeCO 3 D. Fe + + CO 3 - → FeCO 3 A. C. A S2C04 Jeopardy Review

21 What is the net ionic equation for the equation below: 1 Mg(OH) 2 (aq) + 2 HCl(aq)  1 MgCl 2 (aq) + 2 H 2 O(l) A: 2 H + (aq) + 2 OH - (aq)  2 H 2 O S2C04 Jeopardy Review

22 What is the pH of an acidic solution A: below a 7 Th S2C04 Jeopardy Review

23 What is the pH and pOH for the given number [H + ] = 2.0 x M = A: pH= 2.70 pOH= 11.3 S2C04 Jeopardy Review

24 What is the pH of a solution that has a pOH of 3.2? A: pH= 10.8 S2C04 Jeopardy Review

25 What is the pH of a neutral substance? A: 7 T S2C04 Jeopardy Review

26 What is the pOH of a solution if the [H + ] is 3.4 x M? ______________ Is it an acid, base or neutral substance? A: 9.53, Acid T S2C04 Jeopardy Review

27 Acids turn blue litmus paper ________________ A: red T S2C04 Jeopardy Review

28 Bases turn red litmus paper __________________. A: Blue C S2C04 Jeopardy Review


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