7. copper + sulfuric acid yield copper (ii) sulfate + water + sulfur dioxide

The chemical equation for the given reaction has been:

The chemical equation has been the representation of the equation with the chemical symbols for the reactants and products involved in the reaction.

The word equation has been the representation of the reaction in the word form of reactants and products.

The word equation has been given as:

7 copper + sulfuric acid yields copper (II) sulfate + water + sulfur dioxide

The reaction has been a redox reaction for the reduction of sulfuric acid and oxidation of copper.

The chemical equation for the given reaction has been:

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Write the word equations below as chemical equations and balance:

copper + sulfuric acid yield copper (II) sulfate + water + sulfur dioxide

Cu +2 H₂SO₄ = CuSO₄ +2H₂O +SO₂.

Copper is a metal which is sitting just below the hydrogen in the reactivity series.

When metallic copper is put in dilute sulphuric acid and the solution is heated, the solution forms a bluish gdiscoloration with evolution of a gas with smell of brunt sulphur.

Its a redox reaction as the metallic copper gets oxidized to cupric ions and the sulphuric acid gets reduced to Sulphur dioxide gas.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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