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Chemistry — Second Secondary

Chemistry — Second Secondary

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Chemistry — Second Secondary 2026/2027

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Quiz

Question bank: Chapter 1 — Chemical Calculation

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1.
The mass of NaOH in 100 mL of a 0.5 M solution is
1 g
2 g
4 g
20 g
2.
50 mL of 2 M HCl is diluted with water to 200 mL. The new molarity is
0.25 M
0.5 M
1 M
8 M
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