this formula equation is unbalanced.\nbacl₂(aq) + na₂co₃(aq) → baco₃(s) + nacl(aq)\nwhich coefficient should…

this formula equation is unbalanced.\nbacl₂(aq) + na₂co₃(aq) → baco₃(s) + nacl(aq)\nwhich coefficient should be placed in front of nacl to balance this equation?\n1\n2\n3\n4

this formula equation is unbalanced.\nbacl₂(aq) + na₂co₃(aq) → baco₃(s) + nacl(aq)\nwhich coefficient should be placed in front of nacl to balance this equation?\n1\n2\n3\n4

Answer

Answer:

B. 2

Explanation:

Step1: Count sodium atoms on left - hand side

On the left - hand side of the equation $BaCl_2(aq)+Na_2CO_3(aq)\rightarrow BaCO_3(s)+NaCl(aq)$, in $Na_2CO_3$, the number of sodium ($Na$) atoms is 2.

Step2: Balance sodium atoms on right - hand side

On the right - hand side, sodium is present in $NaCl$. To have 2 sodium atoms on the right - hand side, we need 2 moles of $NaCl$. So the coefficient of $NaCl$ should be 2. The balanced equation is $BaCl_2(aq)+Na_2CO_3(aq)\rightarrow BaCO_3(s)+2NaCl(aq)$.