If I am correct the answer would be iron and nickel.
Answer:
C2H4O
Explanation:
C H O
54.54/12 9.09/1 36.37/16
4.545 9.09 2.27
4.545/2.27 9.09/2.27 2.27/2.27
2.00 4.00 1
Empirical formula is C2H4O
Answer: Helium is an type of air that can be used to inflate balloons, balls, and other things that require air. The carbon dioxide we breath out is similar to this helium.
Hope this helps!
Your answer would be B. If I add salt to ice cubes, they will melt faster.
I did this and got it right.