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05-10-2018
Chemistry

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which of these equations are balance a) 3 H2SO + 2AI = AI2(SO4)3 3H2 b) 2KCI + Pb(NO3)2 = 2KNO3 + PbCI2

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05-10-2018

Both equations are balanced.

a) 3H₂SO₄ + 2Al ⟶ Al₂(SO₄)₃ + 3H₂

On the left On the right

6H 6H

3S 3S

12O 12O

2Al 2Al

b) 2KCl + Pb(NO₃)₂ ⟶ 2KNO₃ + PbCl₂

On the left On the right

2K 2K

2Cl 2Cl

1Pb 1Pb

2N 2N

6O 6O

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