B the app and then it was just a was the last time you got it to a friend or we
<span>How many mm are equal to 21 L?
1 L = </span>1000000 mm
Convert:-
1000000 × 21 = <span>21000000
21 l = </span><span>21000000 mm
</span><span>How many mg are equal to 9 g?
1 g = 1000 mg
Convert:-
9 </span>× 1000 = 9000
9 g = 9000 mg
Answer: the answer is B!
Explanation:
S and p’s are valence electrons and if added, there is 7 in total !