ZnCO3, CL2, NaCL, Zn(NO3)2, Zn.

THANK YOU!

It isn't quite that simple. All of them might be bases depending upon what they react with. However, in the context of your question, and I assume this is at an elementary level, ZnCO3 is my choice. It will react with acids to give CO2 and H2O from the CO3^-2.

Thank you! That is what I was thinking.

You're welcome! It looks like you have provided a list of chemical formulas. Let's analyze each of them:

1. ZnCO3: This chemical formula represents Zinc Carbonate. It is a white powdery substance commonly used as a source of zinc in various industries.

2. Cl2: This chemical formula represents Chlorine gas. Chlorine is a greenish-yellow gas that is highly reactive and can be used for disinfection, water treatment, and in the production of various chemical compounds.

3. NaCl: This chemical formula represents Sodium Chloride, which is commonly known as table salt. Sodium chloride is a crystalline solid that is widely used for seasoning and preserving food.

4. Zn(NO3)2: This chemical formula represents Zinc Nitrate. It is a soluble inorganic compound commonly used in the production of catalysts, dyes, and other chemicals.

5. Zn: This chemical symbol represents Zinc. It is a bluish-white metal that is commonly used in alloys, galvanizing, and various industrial applications.

If you have any specific questions about these compounds or need further explanation, feel free to ask!