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Multiple Choice
Complete and balance given reaction. Zn(s) + H2SO4(aq) →
A
2 Zn(s) + H2SO4(aq) → H2(g) + Zn2SO4(aq)
B
Zn(s) + H2SO4(aq) → H2(g) + ZnSO4(aq)
C
Zn(s) + 2 H2SO4(aq) → 2 H2(g) + Zn(SO4)2(aq)
D
Zn(s) + 3 H2SO4(aq) → 3 H2(g) + Zn(SO4)3(aq)
Verified step by step guidance
1
Identify the reactants and products in the given chemical equation. The reactants are Zn(s) and H2SO4(aq), and the products are H2(g) and ZnSO4(aq).
Write the unbalanced chemical equation: Zn(s) + H2SO4(aq) → H2(g) + ZnSO4(aq).
Balance the equation by ensuring the number of atoms of each element is the same on both sides of the equation. Start by balancing the zinc (Zn) atoms. There is one Zn atom on each side, so they are balanced.
Next, balance the hydrogen (H) atoms. There are 2 hydrogen atoms in H2SO4 and 2 hydrogen atoms in H2, so they are balanced.
Finally, balance the sulfate (SO4) groups. There is one sulfate group in H2SO4 and one in ZnSO4, so they are balanced. The balanced equation is: Zn(s) + H2SO4(aq) → H2(g) + ZnSO4(aq).