Answer:
A. 2NaBr + Ca(OH)₂ —> CaBr₂ + 2NaOH
The coefficients are: 2, 1, 1, 2
B. 2NH₃ + H₂SO₄ —> (NH₄)₂SO₄
The coefficients are: 2, 1, 1
Step-by-step explanation:
A. __NaBr + __Ca(OH)₂ —> __CaBr₂ + __NaOH
The above equation can be balance as follow:
NaBr + Ca(OH)₂ —> CaBr₂ + NaOH
There are 2 atoms of H on the left side and 1 atom on the right side. It can be balance by writing 2 before NaOH as shown below:
NaBr + Ca(OH)₂ —> CaBr₂ + 2NaOH
There are 2 atoms of Na on the right side and 1 atom on the left side. It can be balance by writing 2 before NaBr as shown below:
2NaBr + Ca(OH)₂ —> CaBr₂ + 2NaOH
Thus, the equation is balanced. The coefficients are: 2, 1, 1, 2
B. __NH₃ + __H₂SO₄ —> __(NH₄)₂SO₄
The above equation can be balance as follow:
NH₃ + H₂SO₄ —> (NH₄)₂SO₄
There are 2 atoms of N on the right side and 1 atom on the left side. It can be balance by writing 2 before NH₃ as shown below:
2NH₃ + H₂SO₄ —> (NH₄)₂SO₄
Thus, the equation is balanced. The coefficients are:
2, 1, 1