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A five-quark combination called the pentaquark or theta-plus has been hypothesized to exist. The pentaquark is a combination of two ups, two downs, and

A five-quark combination called the pentaquark or theta-plus has been hypothesized to exist. The pentaquark is a combination of two ups, two downs, and one antistrange quark. Determine the net charge on a pentaquark. Show all your work and state why the antistrange has the charge it does.

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