For the reaction: Zn+2ACCI -->2Ag+ZnCl2, if 20 g of Zn are used, how much ZnCl2 is produced? Show all of your work and include the correct units to receive full credit.

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.

The answer is:   [d]:   "ultraviolet" {"  uv  "} .