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5 - Structure and Bonding

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✅EvaluateQuestion 1 of 21

Which statement best describes a chemical bond?

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✅EvaluateQuestion 2 of 21

Why do atoms bond with other atoms?

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✅EvaluateQuestion 3 of 21

Which of the following pairs of elements will most likely form an ionic bond?

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✅EvaluateQuestion 4 of 21

The electrostatic attraction in an ionic bond occurs between:

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✅EvaluateQuestion 5 of 21

Which particle is lost or gained during ionic bonding?

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✅EvaluateQuestion 6 of 21

A magnesium atom (2,8,2) becomes a magnesium ion by:

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✅EvaluateQuestion 7 of 21

Which of the following compounds is ionic?

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✅EvaluateQuestion 8 of 21

When calcium reacts with chlorine, the formula of the compound formed is:

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✅EvaluateQuestion 9 of 21

An atom of aluminium (2,8,3) reacts with oxygen (2,6). The formula of the compound is:

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✅EvaluateQuestion 10 of 21

Which statement explains why sodium chloride conducts electricity when molten but not when solid?

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✅EvaluateQuestion 11 of 21

What type of structure is formed in an ionic compound?

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✅EvaluateQuestion 12 of 21

Which of the following properties is typical of ionic compounds?

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✅EvaluateQuestion 13 of 21

A student observed that crystals of sodium chloride are hard but brittle. This is because:

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✅EvaluateQuestion 14 of 21

Which of the following best explains why ionic compounds are usually soluble in water?

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✅EvaluateQuestion 15 of 21

Which pair of atoms below would form the most strongly ionic compound?

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✅EvaluateQuestion 16 of 21

A metal M with electron configuration (2,8,1) combines with a non-metal X (2,6). Which is the correct formula?

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✅EvaluateQuestion 17 of 21

Sodium oxide (Na₂O) has a high melting point mainly because:

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✅EvaluateQuestion 18 of 21

The diagram below represents ionic bonding between sodium and chlorine: Na • → • Cl What change would make this diagram correct?

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✅EvaluateQuestion 19 of 21

Which of the following correctly shows the ionic bonding in magnesium oxide?

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✅EvaluateQuestion 20 of 21

Which sequence correctly describes the energy changes when an ionic bond forms?

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✅EvaluateQuestion 21 of 21

Which observation best explains why table salt crystals remain solid at high Caribbean room temperatures (~30°C)?

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✅EvaluateQuestion 1 of 21

Which statement best describes a chemical bond?

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