(a) 2KBr(aq)+BaCl₂→2Kl(aq)+BaBr₃(s) It is a double displacement reaction. (b) ZnCO₃(s)→ZnO(s)+CO₂(g) It is a decomposition reaction. (c) H₂(g)+Cl₂→2HCl(g) It is a combination reaction. (d) Mg(s)+2HCl(aq)→MgCl₂+H₂(g) It is a displacement reaction.
(a) 2KBr(aq)+BaCl₂→2Kl(aq)+BaBr₃(s)
It is a double displacement reaction.
(b) ZnCO₃(s)→ZnO(s)+CO₂(g)
It is a decomposition reaction.
(c) H₂(g)+Cl₂→2HCl(g)
It is a combination reaction.
(d) Mg(s)+2HCl(aq)→MgCl₂+H₂(g)
It is a displacement reaction.
When the number of atoms of reactants is equal to the number of atoms of the products, the reaction is called a balanced chemical equation. According to the Law of conservation of mass, total mass of the elements present in the reactants must be equal to the total mass of the elements present in proRead more
When the number of atoms of reactants is equal to the number of atoms of the products, the reaction is called a balanced chemical equation. According to the Law of conservation of mass, total mass of the elements present in the reactants must be equal to the total mass of the elements present in products. That’s why a chemical equations should be balanced always.
Write the balanced chemical equation for the following and identify the type of reaction in each case.
(a) 2KBr(aq)+BaCl₂→2Kl(aq)+BaBr₃(s) It is a double displacement reaction. (b) ZnCO₃(s)→ZnO(s)+CO₂(g) It is a decomposition reaction. (c) H₂(g)+Cl₂→2HCl(g) It is a combination reaction. (d) Mg(s)+2HCl(aq)→MgCl₂+H₂(g) It is a displacement reaction.
(a) 2KBr(aq)+BaCl₂→2Kl(aq)+BaBr₃(s)
See lessIt is a double displacement reaction.
(b) ZnCO₃(s)→ZnO(s)+CO₂(g)
It is a decomposition reaction.
(c) H₂(g)+Cl₂→2HCl(g)
It is a combination reaction.
(d) Mg(s)+2HCl(aq)→MgCl₂+H₂(g)
It is a displacement reaction.
Write the balanced chemical equations for the following reactions.
(a) Ca(OH)₂+CO₂→CaCO₃+H₂O (b) Zn+2AgNO₃→Zn(NO₃)₂+2Ag (c) 2Al+3CuCl₂→2AlCl₃+3Cu (d) BaCl₂+K₂SO4→BaSO₄+2KCl
(a) Ca(OH)₂+CO₂→CaCO₃+H₂O
See less(b) Zn+2AgNO₃→Zn(NO₃)₂+2Ag
(c) 2Al+3CuCl₂→2AlCl₃+3Cu
(d) BaCl₂+K₂SO4→BaSO₄+2KCl
Balance the following chemical equations.
(a) 2HNO₃+Ca(OH)₂→Ca(NO₃)₂+2H₂O (b) 2NaOH+H₂SO4→Na₂SO₄+2H₂O (c) NaCl+AgNO₃→AgCl+NaNO₃ (d) BaCl₂+H₂SO₄→BaSO₄+2HCl
(a) 2HNO₃+Ca(OH)₂→Ca(NO₃)₂+2H₂O
See less(b) 2NaOH+H₂SO4→Na₂SO₄+2H₂O
(c) NaCl+AgNO₃→AgCl+NaNO₃
(d) BaCl₂+H₂SO₄→BaSO₄+2HCl
Translate the following statements into chemical equations and then balance them.
(a) 3H₂+N₂→2NH₃ (b) 2H₂S+3O₂→2H₂O+2SO₂ (c) 3BaCl₂+Al₂(SO₄)₃→2AlCl₃+3BaSO₄ (d) 2K+2H₂O→2KOH+H₂
(a) 3H₂+N₂→2NH₃
(b) 2H₂S+3O₂→2H₂O+2SO₂
(c) 3BaCl₂+Al₂(SO₄)₃→2AlCl₃+3BaSO₄
See less(d) 2K+2H₂O→2KOH+H₂
What is a balanced chemical equation? Why should chemical equations be balanced?
When the number of atoms of reactants is equal to the number of atoms of the products, the reaction is called a balanced chemical equation. According to the Law of conservation of mass, total mass of the elements present in the reactants must be equal to the total mass of the elements present in proRead more
When the number of atoms of reactants is equal to the number of atoms of the products, the reaction is called a balanced chemical equation. According to the Law of conservation of mass, total mass of the elements present in the reactants must be equal to the total mass of the elements present in products. That’s why a chemical equations should be balanced always.
See less