Which sample at STP has the same number of atoms as 18 liters of Ne(g) at STP? 1. 18 moles of Ar(g)

2. 18 liters of Ar(g)

3. 18 grams of H2O(g)

4. 18 millimeters of H20(g)

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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.