A. Study the following chemical reactions:
1. Iron reacts with copper sulphate (CuSO4) and forms iron (II) sulfate (FeSO4) and copper
2. Magnesium combines with oxygen gas (O2) to produce magnesium oxide
3. Hydrogen peroxide (H2O2) in the presence of magnesium dioxide (MnO2) produces water and hydrogen gas
4. Acetic acid (CH3COOH) and sodium bicarbonate (NaHCO3) produce sodium acetate (C2H3NaO2) with the release of carbon dioxide gas and water
5. Copper sulphate (CuSO4) reacts with sodium hydroxide (NaOH) to produce insoluble copper (II) hydroxide (Cu(OH)2) and sodium sulphate (Na2SO4) solution
B. Fill the table below with the Reactants and the products from the chemical reactions above.
Reaction Reactants Products
1
2
3
4
5
Answers
Answer:
1 Fe+ CuSO4 ---> FeSO4 + Cu
Reactant= iron and copper sulphate.
Product= iron sulfate and copper.
2 Mg + O2 ---> MgO
Reactant= magnesium and oxygen.
Product= magnesium oxide.
3 H2O2 + MnO2 ---> H2O + H
Reactant= hydrogen peroxide and magnesium dioxide.
Product= water and hydrogen.
4 CH3COOH +NAHCO3 ---> C2H3NaO2 + CO2 + H2O
Reactant=acetic acid and sodium bicarbonate.
Product= sodium acetate, carbon dioxide and water.
5 CuSO4 + NaOH ---> Cu(OH)2 + Na2SO4
Reactant= copper sulphate and sodium hydroxide.
Product= copper hydroxide and sodium sulphate.
Answer:
1) Reaction: Fe + CuSO4(aq) → FeSO4(aq) + Cu(s)
Reactants: Iron and copper sulphate are the reactants.
Products: Iron sulphate and copper are the ingredients in this product.
2) Reaction: 2 Mg + O2 → MgO
Reactants: Magnesium and oxygen are the reactants.
Products: Magnesium oxide is the product.
3)Reaction: H2O2 + MnO2 → MnO + O2 + H2O
Reactants: Hydrogen peroxide and magnesium dioxide are the reactants.
Products: Water and hydrogen are the end products.
4) Reaction: CH3COOH + NaHCO3 → CH3COONa + H2O + CO2
Reactants: Acetic acid and sodium bicarbonate are the reactants in the above given equation.
Products: Sodium acetate, carbon dioxide, and water are the end products.
5) Reaction: CuSO4 + NaOH⟶ Cu(OH)2 + Na2SO4
Reactants: Copper sulphate and sodium hydroxide are the reactants.
Products: Copper hydroxide and sodium sulphate are the products.
Explanation:
1) It is a displacement reaction and in this reaction, Fe replaced Cu from its sulphate form.
2) It is an exothermic reaction, production of MgO produces heat. And it is also a combination reaction where both the reactants combines to form one product.
3) It is a decomposition reaction.
4) It is a neutralization reaction in which an acid and a base reacts to form salt as a product.
5) It is a double displacement reaction.