Fill in the coefficients that will balance the following reaction:
2 answers:
2NaCl + CaS → Na₂S + CaCl₂
Its 4NaCl + 2CaS -> 2Na2S + 2CaCl2
and since there are 4 and 2, you can divide with 2 so
2NaCl+CaS->Na2S+CaCl2
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