Ionic Compounds (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
How do ionic compounds form?
How do ionic compounds form?
Electron transfer from metal to non-metal
In sodium chloride, what ions are formed?
In sodium chloride, what ions are formed?
Na⁺ and Cl⁻
What is the overall charge of an ionic compound?
What is the overall charge of an ionic compound?
No charge
What holds ions together in an ionic compound?
What holds ions together in an ionic compound?
Strong electrostatic attraction
What is an ionic lattice?
What is an ionic lattice?
Giant structure in regular pattern
What is a limitation of the ball and stick model?
What is a limitation of the ball and stick model?
Sticks mislead; forces act all ways
Approximately how many ions are in one grain of salt?
Approximately how many ions are in one grain of salt?
ions
When can ionic compounds conduct electricity?
When can ionic compounds conduct electricity?
When melted or dissolved
Why can't solid ionic compounds conduct electricity?
Why can't solid ionic compounds conduct electricity?
Ions held in fixed positions
Why do ionic compounds have high melting points?
Why do ionic compounds have high melting points?
Strong electrostatic forces need energy
Why does MgO have a higher melting point than NaCl?
Why does MgO have a higher melting point than NaCl?
Mg²⁺ and O²⁻ bonds stronger than Na⁺/Cl⁻
How do compound properties compare to their elements?
How do compound properties compare to their elements?
Completely different properties