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Given the following equation, write the expression for its relative rate.

Explanation:

The fraction with the molecules in brackets over t should have a Δ in front of it, but I couldn't put it in.  This represents the change in concentration over time.

There is a negative sign in front of the first term because it is a reactant.  Products are positive.

If there is a coefficient in the chemical equation, put the inverse in front of the term in the rate expression.

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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