When a sample of solid ammonium chloride is heated, it breaks down. solid ammonium chloride $\rightarrow$ ammonia gas $+$ hydrogen chloride gas In total, $2.4 \times 10^{21}$ molecules of gas are produced. How many hydrogen atoms are there in the gaseous products?
- A$1.2 \times 10^{21}$
- B$2.4 \times 10^{21}$
- C$4.8 \times 10^{21}$
- D$9.6 \times 10^{21}$