What is the correct order of steps to determine the mass of product created, given a certain mass of reactant?

I. Convert given mass to moles
II. Determine mole ratio between given mass and substance being solved for
III. Balance the equation
IV. Convert moles of substance being solved for to mass

idk i'm not smart

explanation:

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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.

hope this :