The answer should be 5/26 because there are 5 vowels out of 26 lethers in the alphabet.
Answer:
1
Explanation:
you needa do the last question cause i am not learning this but 1 is right
The drawing above is acting as a B) a screw.
mr oxygen= 16. 16 x 3= 48
mr Al2O3= 27 + 27 + 48= 102
(48/102) X 100%= 47.05% oxygen