Final Exam - Grade 9

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Quizzes Created: 2 | Total Attempts: 513
| Attempts: 348 | Questions: 50 | Updated: Nov 20, 2024
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1. When reacting Nitric acid with Ca a compound and a gas produce. Write the formula of the compound produced._____

Explanation

When nitric acid (HNO3) reacts with calcium (Ca), it forms calcium nitrate (Ca(NO3)2) as the compound. This reaction occurs because the nitric acid donates one of its hydrogen ions to the calcium, resulting in the formation of calcium nitrate. The remaining ions from the nitric acid combine with the calcium ion to form the compound Ca(NO3)2.

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About This Quiz
Final Exam - Grade 9 - Quiz

This quiz, titled 'Final Exam - Grade 9', consists of multiple choice questions asking participants to select preferences without a specific context, hinting at a personality assessment style.

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2. When reacting Ammonium Nitrate with Ca(OH)2 a compound, water and a gas produce. Write the formula of the compound produced._____

Explanation

When ammonium nitrate (NH4NO3) reacts with calcium hydroxide (Ca(OH)2), it forms calcium nitrate (Ca(NO3)2) as the compound produced. This reaction is a double displacement reaction, where the ammonium ion (NH4+) is replaced by the calcium ion (Ca2+) to form the compound Ca(NO3)2.

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3. When reacting Magnesium Carbonate with HCl a compound, water and a gas produce. Write the formula of the compound produced._____

Explanation

When Magnesium Carbonate reacts with HCl, it undergoes a chemical reaction known as a double displacement reaction. In this reaction, the Magnesium Carbonate (MgCO3) reacts with the Hydrochloric Acid (HCl) to produce Magnesium Chloride (MgCl2), water (H2O), and carbon dioxide gas (CO2). Therefore, the formula of the compound produced is MgCl2.

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4. When reacting Zinc with Steam a compound and a gas produce. Write the formula of the compound produced._____

Explanation

When zinc reacts with steam, it forms zinc oxide (ZnO). This is because zinc combines with oxygen from the steam to produce the compound ZnO. The reaction can be represented by the following equation: Zn + H2O → ZnO + H2. Therefore, the formula of the compound produced in this reaction is ZnO.

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5. When reacting Mg with Cold Water a compound and a gas produce. Write the formula of the compound produced._____

Explanation

When magnesium reacts with cold water, it forms magnesium hydroxide (Mg(OH)2) as a compound. This compound is produced by the reaction between magnesium and water, resulting in the formation of magnesium hydroxide.

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6. Which one do you like?

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7. Which one do you like?

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The question asks for the preferred choice among options A, B, C, and D. The answer is D, indicating that the person likes option D the most.

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8. Which one do you like?

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9. Which one do you like?

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The question asks for a personal preference, specifically which option the person likes. The correct answer is B, indicating that the person prefers option B over the other options (A, C, and D).

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10. Which one do you like?

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11. Which one do you like?

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12. Which one do you like?

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13. Which one do you like?

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14. Which one do you like?

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15. Which one do you like?

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16. Which one do you like?

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17. Which one do you like?

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18. Which one do you like?

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19. Which one do you like?

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The question asks for a personal preference, so the correct answer would be subjective and dependent on the individual's taste. In this case, the person prefers option A.

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20. Which one do you like?

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21. Which one do you like?

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The given question asks for personal preference among options A, B, C, and D. The answer "D" implies that the person likes option D the most out of the given choices.

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22. Which one do you like?

Explanation

The question asks for a preference among options A, B, C, and D. The answer provided is "B", indicating that the person likes option B the most out of the given choices.

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23. Which one do you like?

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24. Which one do you like?

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The question asks for the preferred choice among the options A, B, C, and D. The answer is C, indicating that the person likes option C the most out of the given choices.

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25. Which one do you like?

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26. Which one do you like?

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The explanation for the correct answer "C" is not available as the question does not provide any context or options to choose from.

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27. Which one do you like?

Explanation

The question asks for a personal preference, specifically asking which option the person likes. The correct answer is A, indicating that the person likes option A the most out of the given choices.

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28. Which one do you like?

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29. Which one do you like?

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30. Which one do you like?

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31. Which one do you like?

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32. Which one do you like?

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The explanation for the correct answer, B, is not available.

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33. Which one do you like?

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34. Which one do you like?

Explanation

The question asks for a personal preference among the options A, B, C, and D. The correct answer is C, indicating that the person likes option C the most out of all the given choices.

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35. Which one do you like?

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36. Which one do you like?

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37. Which one do you like?

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38. Which one do you like?

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The explanation for the correct answer being C is not available as the question does not provide any context or information about the options A, B, and D.

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39. Which one do you like?

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40. Which one do you like?

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The question asks for the respondent's preference among the options A, B, C, and D. The correct answer is A, indicating that the respondent likes option A the most out of the given choices.

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41. Which one do you like?

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42. Which one do you like?

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43. (a)  _____ (b)  _____ (c)  _____ (d)  _____

Explanation

The given answer states that the first blank is filled with "increases" and the second blank is filled with "increase". This means that the first blank refers to a situation where something is increasing, and the second blank refers to the effect or outcome of that increase. The answer then states that the third and fourth blanks are filled with "decreases" and "decrease" respectively. This means that the third blank refers to a situation where something is decreasing, and the fourth blank refers to the effect or outcome of that decrease. Therefore, the correct answer is that the first blank represents an increase and the second blank represents the resulting increase, while the third blank represents a decrease and the fourth blank represents the resulting decrease.

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44. Which one do you like?

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45. Which one do you like?

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46. Which one do you like?

Explanation

The question asks for the preferred choice among options A, B, C, and D. The correct answer is A, indicating that the person likes option A the most out of all the given choices.

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47. The symbols of some particles are shown in the box. Select from the list of particles to answer the following questions. (write in the blank the letter that represent the answer) A particle may be selected once, more than once or not at all. An example is done for you to show how to write the correct answer. (example) pops with lighted splint? the answer is (R) (1) considered as the natural gas ? _____ (2) a radioactive fuel? _____ (3)  a product of photosynthesis process ? _____ (4) is an acidic oxide? _____ (5)  turns universal indicator yellow ? _____ (6) is the Hematite ? _____ (7) a blue salt ? _____ (8) has a nucleon number of 28 ? _____ (9) a basic gas? _____ (10) can be used as inert electrodes?_____ (11) is a neutral oxide? _____ (12) turns limewater milky ? _____

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48. (a) _____. (b) _____. (c) _____. (d) _____

Explanation

This answer suggests that impure nickel, pure nickel, and nickel nitrate are all related in some way, and that their presence or use leads to a decrease in something. Without further context, it is difficult to determine what exactly is being decreased.

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49. When applying heat to (Aluminum hydroxide) it will decompose producing an aluminum compound. Write the formula of this compound._____

Explanation

When heat is applied to Aluminum hydroxide (Al(OH)3), it decomposes into aluminum oxide (Al2O3).

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50. (i)     _____ (ii)     _____ (iii)     _____ (iv)     _____ (v)     _____
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When reacting Nitric acid with Ca a compound and a gas produce. ...
When reacting Ammonium Nitrate with Ca(OH)2 a compound,...
When reacting Magnesium Carbonate with HCl a compound, water and...
When reacting Zinc with Steam a compound and a gas produce. ...
When reacting Mg with Cold Water a compound and a gas...
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(a)  _____ (b)  _____ (c)  _____ (d)  _____
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The symbols of some particles are shown in the box. ...
(a) _____. (b) _____. (c) _____. (d) _____
When applying heat to (Aluminum hydroxide) it will decompose...
(i)     _____ ...
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