Cc Final Exam - Grade 9

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Quizzes Created: 2 | Total Attempts: 513
| Attempts: 165 | Questions: 50 | Updated: Oct 20, 2025
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1. 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 undergoes decomposition and produces aluminum oxide (Al2O3). This is because the heat causes the water molecules in the compound to evaporate, leaving behind the aluminum and oxygen atoms to combine and form aluminum oxide. Therefore, the formula of the compound produced is Al2O3.

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About This Quiz
Cc Final Exam - Grade 9 - Quiz

This quiz titled 'CC Final Exam - Grade 9' assesses preferences in an unspecified context, likely aiming to evaluate decision-making or preference trends among Grade 9 students.

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2. 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 double displacement reaction. The Carbonate ion (CO3^2-) from Magnesium Carbonate combines with the Hydrogen ion (H+) from HCl to form water (H2O). The remaining Magnesium ion (Mg^2+) combines with the Chloride ion (Cl-) from HCl to form Magnesium Chloride (MgCl2). Therefore, the formula of the compound produced is MgCl2.

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3. 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).

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4. Which one do you like?

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5. Which one do you like?

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8. Which one do you like?

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9. Which one do you like?

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

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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 the individual's preference among the given options A, B, C, and D. The person has chosen option D as their preference.

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20. Which one do you like?

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21. Which one do you like?

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22. Which one do you like?

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The explanation for the correct answer, D, is not provided.

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23. Which one do you like?

Explanation

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

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24. Which one do you like?

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25. Which one do you like?

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26. Which one do you like?

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27. Which one do you like?

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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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33. 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), the products formed are calcium nitrate (Ca(NO3)2), water (H2O), and ammonia gas (NH3). Therefore, the formula of the compound produced is Ca(NO3)2.

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34. Which one do you like?

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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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39. Which one do you like?

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40. Which one do you like?

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41. Which one do you like?

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

Explanation

The given answer lists different substances - impure nickel, pure nickel, and nickel nitrate. It also states that the effect of these substances is a decrease. However, without any context or additional information, it is difficult to determine the specific question or scenario being referred to. Therefore, a complete explanation cannot be provided.

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43. Which one do you like?

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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. 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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47. 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 produced. This is because nitric acid is a strong acid that can donate hydrogen ions (H+) while calcium is a metal that can accept these ions. The resulting compound, calcium nitrate, is formed by the combination of one calcium ion (Ca2+) and two nitrate ions (NO3-) from the nitric acid.

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48. (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 implies that the first blank represents a situation where something is increasing, and the second blank represents the action of increasing. Similarly, the third blank is filled with "decreases" and the fourth blank is filled with "decrease". This suggests that the third blank represents a situation where something is decreasing, and the fourth blank represents the action of decreasing. Therefore, the given answer provides a logical explanation for the relationship between the blanks.

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49. 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 the compound produced. This is because magnesium reacts with water to produce magnesium hydroxide, which is a compound consisting of one magnesium ion (Mg2+) and two hydroxide ions (OH-).

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50. (i)     _____ (ii)     _____ (iii)     _____ (iv)     _____ (v)     _____

Explanation

The given answer sequence is B,b,C,c,A,a,D,d,C,c. This answer sequence follows a pattern of alternating between uppercase and lowercase letters. Each uppercase letter represents the first letter of the corresponding word in the question, while each lowercase letter represents the second letter of the corresponding word in the question. Therefore, the answer sequence accurately represents the letters of the blanks in the question.

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