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Answer each question and check where every mark went.
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Structured questions0 / 4
- 1
Question 1
Moles and reacting masses. Molar gas volume at r.t.p. = 24 dm³/mol.
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9 marksOpen › - 2
Question 2
Solutions and concentration. A student dissolves 5.85 g of sodium chloride, NaCl, in water to make 500 cm³ of solution. [Aᵣ: Na = 23, Cl = 35.5]
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8 marksOpen › - 3
Question 3
Empirical formula and percentage composition.
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10 marksOpen › - 4
Question 4
Types of chemical bonding. Sodium chloride, NaCl, has an ionic structure. Magnesium, Mg, has a metallic structure. Chlorine, Cl₂, has a simple molecular (covalent) structure.
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10 marksOpen ›