nabr + caf₂ → naf + cabr₂\nwhat coefficients are needed to balance the chemical equation?\na 1,1,1,1\nb…
nabr + caf₂ → naf + cabr₂\nwhat coefficients are needed to balance the chemical equation?\na 1,1,1,1\nb 1,2,1,2\nc 1,2,2,1\nd 2,1,2,1
Answer
Explanation:
Step1: Count atoms on each side
On the left - hand side: 1 Na, 1 Br, 1 Ca, 2 F. On the right - hand side: 1 Na, 2 Br, 1 Ca, 1 F.
Step2: Balance bromine atoms
To balance Br atoms, put a coefficient of 2 in front of NaBr on the left - hand side. Now we have 2 Na, 2 Br, 1 Ca, 2 F on the left.
Step3: Balance sodium atoms
Put a coefficient of 2 in front of NaF on the right - hand side. The balanced equation is $2NaBr + CaF_2\rightarrow2NaF + CaBr_2$.
Answer:
D. 2,1,2,1