Explanation:
A precipitate is defined as an insoluble substance that emerges upon mixing of two aqueous solutions.
For example,
As precipitate is a solid and it is represented by (s). And, an aqueous solution is represented by (aq).
So, the products of the given reactants will be as follows.
Hence, we can conclude that out of the given options, these two equations will produce a precipitate.
Your answer is carbon-12
Answer:
1.635
Structural
It is a structure that those organisms have that allow it to be better suited for a task or for that organism's environment.