Counting Atoms Worksheet Pdf
Creating a counting atoms worksheet involves providing chemical formulas and asking students to count the number of atoms of each element present in the compounds. Here’s a simple example worksheet:
Counting Atoms Worksheet
**Instructions:** Count the number of atoms for each element in the given chemical formulas.
1. H₂O
– Hydrogen (H): ________
– Oxygen (O): ________
2. CH₄
– Carbon (C): ________
– Hydrogen (H): ________
3. 2NaCl
– Sodium (Na): ________
– Chlorine (Cl): ________
4. C₆H₁₂O₆
– Carbon (C): ________
– Hydrogen (H): ________
– Oxygen (O): ________
5. Al₂(SO₄)₃
– Aluminum (Al): ________
– Sulfur (S): ________
– Oxygen (O): ________
6. 3Mg(NO₃)₂
– Magnesium (Mg): ________
– Nitrogen (N): ________
– Oxygen (O): ________
7. Fe₂O₃
– Iron (Fe): ________
– Oxygen (O): ________
8. C₁₀H₈O₄
– Carbon (C): ________
– Hydrogen (H): ________
– Oxygen (O): ________
9. K₂CO₃
– Potassium (K): ________
– Carbon (C): ________
– Oxygen (O): ________
10. N₂
– Nitrogen (N): ________
**Answers:**
1. H₂O
– Hydrogen (H): 2
– Oxygen (O): 1
2. CH₄
– Carbon (C): 1
– Hydrogen (H): 4
3. 2NaCl
– Sodium (Na): 2
– Chlorine (Cl): 2
4. C₆H₁₂O₆
– Carbon (C): 6
– Hydrogen (H): 12
– Oxygen (O): 6
5. Al₂(SO₄)₃
– Aluminum (Al): 2
– Sulfur (S): 3
– Oxygen (O): 12
6. 3Mg(NO₃)₂
– Magnesium (Mg): 3
– Nitrogen (N): 6
– Oxygen (O): 18
7. Fe₂O₃
– Iron (Fe): 2
– Oxygen (O): 3
8. C₁₀H₈O₄
– Carbon (C): 10
– Hydrogen (H): 8
– Oxygen (O): 4
9. K₂CO₃
– Potassium (K): 2
– Carbon (C): 1
– Oxygen (O): 3
10. N₂
– Nitrogen (N): 2
Feel free to customize the worksheet by adding more compounds or adjusting the complexity of the formulas based on the level of the students you’re creating it for.
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