CORRECTLY EXPLAIN How will the equilibrium shift if the following changes are made? State if the reaction will shift to the left or right and explain why it will shift in that direction.
PCl5 (g)+heat ⇌ PCl3 (g)+ Cl2 (g)
1) Temperature is increased
2) Pressure is increased
3) Cl2 is added
4) PCl3 is removed as it is formed

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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