1.6 x 10-4 moles of sodium chloride (NaCl) = ? formula units NaCl

As cooking food that has to go in the oven

If this is a true or galse then its true but if not then what is the question?

The population of unionid mussels decreased after zebra mussels were introduced. zebra mussels competed with the unionid mussels for food. the zebra mussels were able to displace the unionid mussels, allowing the zebra mussel population to increase  over the years. the unionid mussel population decreased because  of lack of food.