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: [[Hydrofluoric Acid]] [[Chemical Reaction|reacts]] with [[metal]]s and [[base]]s to produce [[Fluoride]] [[salt]]s.
====Hydrofluoric Acid and Metals====
:[[Hydrofluoric Acid]] + [[Sodium ]] → [[Sodium Fluoride]] + [[Hydrogen]]:[[Hydrofluoric Acid]] + [[Magnesium]] → [[MagnesiumFluoride]] + [[Hydrogen]]:[[Hydrofluoric Acid]] + [[Aluminium]] → [[Aluminium Fluoride]] + [[Hydrogen]]
====Hydrofluoric Acid and Metal Oxides====
:[[Hydrofluoric Acid]] + [[Sodium Oxide]] → [[Sodium Fluoride]] + [[Water]]:[[Hydrofluoric Acid]] + [[Magnesium Oxide]] → [[Magnesium OxidesFluoride]] + [[Water]]:[[Hydrofluoric Acid]] + [[Aluminium Oxide]] → [[Aluminium OxidesFluoride]] + [[Water]]
====Hydrofluoric Acid and Metal Carbonates====
:[[Hydrofluoric Acid]] + [[Sodium Carbonate]] → [[Sodium Fluoride]] + [[Carbon Dioxide]] + [[Water]]:[[Hydrofluoric Acid]] + [[Magnesium Carbonate]] → [[Magnesium Fluoride]] + [[Carbon Dioxide]] + [[Water]]:[[Hydrofluoric Acid]] + [[Aluminium Carbonate]] → [[Aluminium Fluoride]] + [[Carbon Dioxide]] + [[Water]] ==Key Stage 4=====Meaning===[[Hydrofluoric Acid]] is an [[acid]] with the [[Chemical Formula|chemical formula]] HF. ===About Hydrofluoric Acid===: [[Hydrofluoric Acid]] [[Chemical Reaction|reacts]] with [[metal]]s and [[base]]s to produce [[Fluoride]] [[salt]]s.====Hydrofluoric Acid and Metals====:[[Hydrofluoric Acid]] + [[Sodium]] → [[Sodium Fluoride]] + [[Hydrogen]]:2HF + 2Na → 2NaF + H<sub>2</sub>:[[Hydrofluoric Acid]] + [[Magnesium]] → [[Magnesium Fluoride]] + [[Hydrogen]]:2HF + Mg → MgF<sub>2</sub> + H<sub>2</sub>:[[Hydrofluoric Acid]] + [[Aluminium]] → [[Aluminium Fluoride]] + [[Hydrogen]]:6HF + 2Al → 2AlF<sub>3</sub> + 3H<sub>2</sub>====Hydrofluoric Acid and Metal Oxides====:[[Hydrofluoric Acid]] + [[Sodium Oxide]] → [[Sodium Fluoride]] + [[Water]]:2HF + Na<sub>2</sub>O → 2NaF + H<sub>2</sub>O:[[Hydrofluoric Acid]] + [[Magnesium Oxide]] → [[Magnesium Fluoride]] + [[Water]]:2HF + MgO → MgF<sub>2</sub> + H<sub>2</sub>O:[[Hydrofluoric Acid]] + [[Aluminium Oxide]] → [[Aluminium Fluoride]] + [[Water]]:6HF + Al<sub>2</sub>O<sub>3</sub> → 2AlF<sub>3</sub> + 3H<sub>2</sub>O ====Hydrofluoric Acid and Metal Carbonates====:[[Hydrofluoric Acid]] + [[Sodium Carbonate]] → [[Sodium Fluoride]] + [[Carbon Dioxide]] + [[Water]]:2HF + Na<sub>2</sub>CO<sub>3</sub> → 2NaF + CO<sub>2</sub> + H<sub>2</sub>O:[[Hydrofluoric Acid]] + [[Magnesium Carbonate]] → [[Magnesium CarbonatesFluoride]] + [[Carbon Dioxide]] + [[Water]]:2HF + MgCO<sub>3</sub> → MgF<sub>2</sub> + CO<sub>2</sub> + H<sub>2</sub>O:[[Hydrofluoric Acid]] + [[Aluminium Carbonate]] → [[Aluminium CarbonatesFluoride]] + [[Carbon Dioxide]] + [[Water]]:6HF + Al<sub>2</sub>(CO<sub>3</sub>)<sub>3</sub> → 2AlF<sub>3</sub> + 3CO<sub>2</sub> + 3H<sub>2</sub>O