Question

Mg+O2= MgO+H2SO4= MgSo4+NaOH= Cu+HC

Answer 1

2Mg + O₂ = 2MgO
MgO + H₂SO₄ = MgSO₄ + H₂O
MgSO₄ + 2NaOH = Mg(OH)₂ + Na₂SO₄
Cu + HCl = \\\не идет, т.к. медь неактивный металл

Answer 2

Chemical Reactions:

The given equation is:

Mg + O2 = MgO H2SO4 = MgSo4 + NaOH Cu + HC

Let's break down each reaction and provide a detailed explanation.

1. Mg + O2 = MgO: - This is a synthesis reaction where magnesium (Mg) reacts with oxygen (O2) to form magnesium oxide (MgO). - The balanced equation for this reaction is: 2Mg + O2 = 2MgO. - This reaction occurs when magnesium metal reacts with oxygen gas in the air. - The product, magnesium oxide, is a white solid.

2. H2SO4 = MgSo4 + NaOH: - This equation seems to be incomplete or incorrect. It is missing reactants and products. - However, based on the given equation, it appears to be a neutralization reaction between sulfuric acid (H2SO4) and a combination of magnesium sulfate (MgSO4) and sodium hydroxide (NaOH). - In a neutralization reaction, an acid reacts with a base to form a salt and water. - The balanced equation for a neutralization reaction between sulfuric acid and sodium hydroxide is: H2SO4 + 2NaOH = Na2SO4 + 2H2O. - It is important to note that the given equation is incomplete and lacks the necessary reactants and products.

3. Cu + HC: - The given equation is incomplete and lacks the necessary reactants and products. - However, based on the given equation, it appears to be a single replacement reaction between copper (Cu) and an unknown compound represented by HC. - In a single replacement reaction, an element replaces another element in a compound. - The balanced equation for a single replacement reaction between copper and hydrochloric acid (HCl) is: Cu + 2HCl = CuCl2 + H2. - It is important to note that the given equation is incomplete and lacks the necessary reactants and products.

Please provide the missing reactants and products for a more accurate explanation of the reactions.

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