D because Carbon and Oxygen form covalent compounds. I wasn't the greatest at chem., but I'm pretty sure this is correct :D let me know if I gave you the right answer.
If the reaction is a chemical change, new substances with different properties and identities are formed. This may be indicated by the production of an odor, a change in color or energy, or the formation of a solid.
Answer:indicates the number of electrons in an atom.
Explanation:
hope it helps u
Answer:

Explanation:
Hello there!
In this case, since the thermodynamic definition of the Gibbs free energy for a change process is:

It is possible to plug in the given H, T and S with consistent units, to obtain the correct G as shown below:

Best regards!
The zinc ion +1 can exist but it is very rare and not likely to show up on school work but in your case it did how odd