B, they belong to group 1
A: Li is period 2 and Na is period 3
C: Na has one more electron shell
D: Not related to how it is spelled
The chemical symbol for gold is AU
A concave<span> surface, </span>structure<span>, or line. tr.v. con·caved, concaving, con·caves.
hope that helped</span>
Answer:
A. decomposition.
Explanation:
Recall the types of chemical reactions and how they are typically written.
Synthesis : A + B ==> AB
Decomposition : AB ==> A + B
Double Replacement : AB + CD ==> AC + BD
Single Replacement : AB + C ==> AC + B
Now although it may seem that the given equation doesnt follow any of these as it has more parts, it follows decomposition.
Decomposition is simply a single compound being broken up into two or more products. So it can be written as ABC ==> A + B + C as well therefore the answer is A
