Write the reactions of following metals with dilute hydrochloric acid and dilute sulphuric acid.
1.potassium
2.sodium
3.Calcium
4.magnesium
5.Aluminum
6.zinc
7.Iron
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Answers
Answer:
7.Iron.
Explanation:
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Answer:
1 Reaction of potassium with dilute sulphuric acid: Potassium sulphate and hydrogen gas are formed when potassium reacts with dilute sulphuric acid. ... Reaction of aluminium with dilute hydrochloric acid: Aluminium chloride and hydrogen gas are formed.
2 Sodium reacts with dilute hydrochloric acid to form sodium chloride and hydrogen gas. Mixing with water produces sodium hydroxide. ... Hydrogen gas is produced during the reaction and an alkaline solution is formed formed called sodium hydroxide.
If we have solid sodium chloride and concentrated sulphuric acid then an acid/base reaction occurs. Steamy fumes of hydrogen choride gas are observed. The other product is sodium hydrogen sulphate NaHSO4 . This forms the basis of the laboratory preparation of hydrogen chloride gas.
3 Alkaline earth metal react with acids to produce hydrogen gas here's the chemical equation: Ca + 2HCl → CaCl2 + H2. The bubbles are hydrogen gas.
4 Reaction of potassium with dilute sulphuric acid: Potassium sulphate and hydrogen gas are formed when potassium reacts with dilute sulphuric acid. Reaction of magnesium metal with dilute hydrochloric acid: Magnesium chloride and hydrogen gas are formed when magnesium reacts with dilute hydrochloric acid.
5 Reaction of aluminium with acids
Aluminium metal dissolves readily in dilute sulphuric acid to form solutions containing the aquated Al(III) ion together with hydrogen gas, H2. The corresponding reactions with dilute hydrochloric acid also give the aquated Al(III) ion.
6 Metals form respective salts when react with dilute acid. ... Reaction of aluminium with dilute hydrochloric acid: Aluminium chloride and hydrogen gas are formed. 2Al + 6HCl ⇨ 2AlCl3 + 3H2. Reaction of zinc with dilute sulphuric acid: Zinc sulphate and hydrochloride when zinc reacts with dilute sulphuric acid
7
Iron metal dissolves readily in dilute sulphuric acid in the absence of oxygen to form solutions containing the aquated Fe(II) ion together with hydrogen gas, H2. ... If oxygen is present, some of the Fe(II) oxidizes to Fe(III).
1 mole of Iron reacts with 2 moles of hydrochloric acid to produce 1 mole of iron chloride and 1 mole of hydrogen gas