Practice Writing A Chemical Equation (1.1) - Chemical Reactions and Equations

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9 questions

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Exercise
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6 sample questions

Question 1.
What are reactants in a chemical equation?
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Think about what you start with before a reaction occurs.
Question 2.
What does a balanced chemical equation mean?
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Consider the concept of conservation of mass.
3Question 3.
What represents the products in a chemical equation?
- Reactants
- Elements
- Items after the reaction
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Think about what you end up with after the reaction occurs.
4Question 4.
True or False: A skeletal equation is always a balanced equation.
- True
- False
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Recall how we modify skeletal equations for balance.
Question 5.
Balance the following reaction: P + O2 → P2O5 and explain the balancing steps.
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Count each type of atom before and after to ensure balance.
Question 6.
Write a complete chemical equation for the combustion of ethane (C2H6) in oxygen and balance it.
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Balancing often starts with the larger compounds before smaller ones.

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