Answer:
The answer to your question is:
Explanation:
1.- b. Aluminum
2.- Ar 8
P 5
Ca 2
Record ...... List of elements Total number of atoms
2 NaCl Sodium, Chlorine (2) 4
CO₂ Carbon, oxygen (2) 3
H₃PO₄ Hydrogen, phosphorus, oxygen (3) 8
3 H₂SO₄ Hydrogen, sulfur, oxygen (3) 21
6(H₂O) Hydrogen, oxygen (2) 18
Write the formula
a) CH₄ b) NaHCO₃ c) H₂O₂
Draw a model
a) Cl - Ca - Cl b) Cl - Fe - Cl Cl - Fe - Cl Cl - Fe - Cl
| | |
Cl Cl Cl
