Question

eight dinitrogen monoxide molecules
express your answer as an integer.
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Explanation:

Step1: Determine the formula of dinitrogen monoxide

Dinitrogen monoxide has the formula $N_2O$. So each molecule of $N_2O$ contains 2 nitrogen atoms and 1 oxygen atom, for a total of $2 + 1=3$ atoms per molecule.

Step2: Calculate the total number of atoms in 8 molecules

If one molecule has 3 atoms, then 8 molecules will have $8\times3 = 24$ atoms.

Answer:

24