Chemical formula tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the compound as well as how many there are for each element in the form of subscripts.
B would be incorrect because "So did two others from our youth group." is an incomplete sentence.
Answer:
A or c I think one of them is the answer
Explanation:
The sentence that is punctuated correctly is option A. On her Mediterranean cruise, Mamie visited Barcelona, Spain; Nice, France; and Pisa, Italy. A semicolon is used in this sentence because more than one of the units in the series are using the punctuation mark commas.
The answer is A.hope this helps.<span />