Chemistry Past Paper PDF
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Bishop Gorman High School
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Summary
This document contains a chemistry past paper. The paper includes filling in the blanks for tables of ions, atoms and formula calculation tasks. Suitable for secondary school chemistry students.
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### 88. Fill in the blanks to complete the table. | Symbol | Ion Commonly Formed | Number of Electrons in Ion | Number of Protons in Ion | |---|---|---|---| | F | | | 9 | | Br | Be<sup>2+</sup> | 2 | | | Al | | 36 | 13 | ### 113. Fill in the blanks to complete the table. | Symbol | Z |...
### 88. Fill in the blanks to complete the table. | Symbol | Ion Commonly Formed | Number of Electrons in Ion | Number of Protons in Ion | |---|---|---|---| | F | | | 9 | | Br | Be<sup>2+</sup> | 2 | | | Al | | 36 | 13 | ### 113. Fill in the blanks to complete the table. | Symbol | Z | A | Number of Protons | Number of Electrons | Number of Neutrons | Charge | |---|---|---|---|---|---|---| | Zn<sup>2+</sup> | | | | | 34 | 2+ | | | 25 | 55 | | 22 | | | | | | 16 | 15 | 15 | 16 | | | O<sup>2-</sup> | | | | | | 2- | ### 40. Complete the table. | Formula | Number of SO<sub>4</sub><sup>2-</sup> Units | Number of Sulfur Atoms | Number of Oxygen Atoms | Number of Metal Atoms | |---|---|---|---|---| | CaSO<sub>4</sub> | | | | | | Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> | | | | | | K<sub>2</sub>SO<sub>4</sub> | | | | | | Cr<sub>2</sub>(C<sub>2</sub>H<sub>3</sub>O<sub>2</sub>)<sub>4</sub> | | | | | ### 88. Calculate the formula mass for each compound. a. CS<sub>2</sub> b. C<sub>6</sub>H<sub>12</sub>O<sub>6</sub> c. Fe(NO<sub>3</sub>)<sub>3</sub> d. C<sub>7</sub>H<sub>16</sub>
