Answer:
1.6 × 10²³ molecules of N2O5
Explanation:
To find the amount of molecules from the amount of moles of a substance we simply multiply the amount of moles by Avagadro's number.
0.27mol × 6.02×10²³ = 1.6 × 10²³ molecules of N2O5
2Mg (s) + (g) ---> 2MgO (s)
1. 3x-3=18
Value of x=7
2. 4x-5=23
value of x=7