Step-by-step explanation:
please refer to the attachment.
I have sure you know how to calculate X
Answer:
I guess J
Step-by-step explanation:
8.2 grams = 1 mol
Na ________
22.99 grams
First multiply the value of 8.2 to 1. Then divide by the value of 22.99 to determine the number of moles of sodium present in the 8.2 gram sample.
Then use the following equation to solve for sodium atoms.
Number of moles of Na • Avogadro Number = Number of sodium atoms.
0.3566782 • (6.02 X 10^23). = 2.1472 X 10 ^ 23. Or 2.15 X 10 ^ 23.
The answer is the second option - 2.15 X 10 ^ 23.
Answer:
9m³n⁴
Step-by-step explanation:
18m^5n^4 = 2×3² m^5n^4
45m^3n^6 = 3²×5 m^3n^6
GFC = 3² m³n⁴ = 9m³n⁴
2500Y + 35,885 = 250,000
2500Y +35885 -35885= 250,000 - 35885
2500Y/2500 = 214115/2500
Y= 85.64
85 years is the answer
y=years
