Activity 4: Particle Pictures
The particle picture shows magnesium particles in a dilute acid. Acid particles
constantly collide with the hydrogen produced.
1. In the particle diagram above, which is the limiting reactant? Explain why.
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2. Draw a second diagram with twice the original number of acid particles.
3. Use the two diagrams to explain why doubling the number of acid particles
produces twice as much hydrogen.
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4. Explain why adding 10 times the original number of acid particles will not produce
10 times as much hydrogen.
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