Question

what is the formula for dinitrogen tetrachloride?
n₃cl₅
n₄cl₄
n₂cl₄
n₂cl₆
question 6
1 pts
which is the formula for sodium carbonate?
na₂co₃
naco₂
na₂co₂
naco₃

Explanation:

Step1: Analyze prefixes for dinitrogen tetrachloride

The prefix "di -" means 2 for nitrogen (N), and "tetra -" means 4 for chlorine (Cl), so the formula is $N_2Cl_4$.

Step2: Analyze sodium carbonate formula

Sodium has a +1 charge ($Na^+$), carbonate ion is $CO_3^{2 -}$. To balance the charges, 2 sodium ions are needed, so the formula is $Na_2CO_3$.

Answer:

1. C. $N_2Cl_4$
2. A. $Na_2CO_3$