Its 2-chlorobutanal
hope that helps
A. Mg and Ca
They have similar reactive properties; they’re both Alkaline Earth metals.
Answer: The metals are to the left of the line (except for hydrogen, which is a nonmetal), the nonmetals are to the right of the line, and the elements immediately adjacent to the line are the metalloids.
Explanation:
When elements combine to form compounds, there are two major types of bonding that can result.
I don't know which ones r, could u add options, maybe?