Final answer:
The chemical symbols for sodium, potassium, iron, calcium, oxygen, carbon, hydrogen, copper, and chlorine are Na, K, Fe, Ca, O, C, H, Cu, and Cl, respectively. These symbols are derived from each element's English or Latin names.
Step-by-step explanation:
The chemical symbols for the elements you've listed are as follows:
- Sodium - Na
- Potassium - K
- Iron - Fe
- Calcium - Ca
- Oxygen - O
- Carbon - C
- Hydrogen - H
- Copper - Cu
- Chlorine - Cl
Each element on the periodic table has a unique chemical symbol that represents it. The symbol may derive from its English name, such as C for carbon, or its Latin name, such as Na for sodium from the Latin 'natrium'.