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Chemical Reactions and Equations: Magnesium Ribbon Burning

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Chemical Reactions and Equations: Magnesium Ribbon Burning

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Questions and Answers

What is the balanced chemical equation for the reaction between barium chloride and sodium sulphate?

BaCl2(aq) + Na2SO4(s) → BaSO4(aq) + 2NaCl(aq)

BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq) (correct)

BaCl2(s) + Na2SO4(aq) → BaSO4(aq) + 2NaCl(aq)

BaCl2(aq) + Na2SO4(aq) → BaSO4(aq) + 2NaCl(s)

What is the product formed when sodium hydroxide solution reacts with hydrochloric acid solution?

Sodium Chloride Solution (correct)

Sodium Hydroxide

Water

Hydrochloric Acid

What is the state symbol for Barium Sulphate in the first reaction?

Liquid (l)

Aqueous (aq)

Solid (s) (correct)

Gas (g)

What is the state symbol for Sodium Chloride in the second reaction?

<p>Aqueous (aq)</p> Signup and view all the answers

What type of reaction is observed in the second chemical equation?

<p>Double Replacement</p> Signup and view all the answers

Study Notes

Cleaning Magnesium Ribbon

Magnesium is a highly reactive metal that reacts with oxygen to form a layer of magnesium oxide (MgO) on its surface.
The magnesium oxide layer is stable and prevents further reaction of magnesium with oxygen.
To remove the magnesium oxide layer, the magnesium ribbon is cleaned with sandpaper, allowing the underlying metal to react.

Balanced Chemical Equations

Hydrogen reacts with chlorine to form hydrogen chloride: H₂ + Cl₂ → 2HCl
Barium chloride reacts with aluminium sulphate to form barium sulphate and aluminium chloride: 3BaCl₂ + Al₂(SO₄)₃ → 2AlCl₃ + 3BaSO₄
Sodium reacts with water to form sodium hydroxide and hydrogen: 2Na + 2H₂O → 2NaOH + H₂

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Description

Learn about the importance of cleaning a magnesium ribbon before burning in air and the formation of magnesium oxide. Understand the reactivity of magnesium and its interaction with oxygen.