Since I can't view or access images directly, I can't see the specific formulas or tasks in your uploaded image. However, if you describe the problem or list the chemical formulas from the worksheet (e.g., H₂O, CO₂, etc.), I can help you determine the
number of atoms in each formula and explain how to solve it.
For example, here’s how you would approach such a problem:
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🔹 How to Count Atoms in a Chemical Formula:
1.
Look at the subscripts: These tell you how many atoms of each element are present.
2.
If there's no subscript, assume it’s 1.
3.
If there’s a coefficient (number before the formula), multiply all atoms in the formula by that number.
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🔹 Example:
-
H₂O
- H: 2 atoms
- O: 1 atom
→ Total = 3 atoms
-
CO₂
- C: 1 atom
- O: 2 atoms
→ Total = 3 atoms
-
Mg(OH)₂
- Mg: 1 atom
- O: 2 atoms (from OH × 2)
- H: 2 atoms (from OH × 2)
→ Total = 5 atoms
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If you provide the list of formulas from the worksheet, I’ll solve them step-by-step and explain each one! Just type them out here.
Parent Tip: Review the logic above to help your child master the concept of physical science if8767 worksheet.
