Q. 17 C5.0( 2 Votes )
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Answer :
Zn + HCl → ZnCl2 + H2
Balanced equation: Zn(s) + 2HCl(aq)→ ZnCl2(aq) + H2(g)↑
Explanation:
⇒Step 1: Write the given unbalanced equation
Zn + HCl → ZnCl2 + H2
⇒Step 2: Compare the number of atoms of reactants with the number of atoms of products.
⇒Step 3: Now, first we consider the element having uSnequal no. of atoms on both sides. Thus, first let us consider hydrogen atom. If we multiply 2 in the reactant (in HCl), we will get the equal number of atoms as in product (in H2)
⇒Step 4: Write the resulting equation:
Zn + 2HCl → ZnCl2 + H2
⇒Step 5: Now check whether the equation is balanced or not by comparing the atoms
We find that the equation is balanced now.
⇒Step 6: Write down the final balanced equation:
Zn + 2HCl → ZnCl2 + H2
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