what do sodium, potassium, phosphorous, oxygen,carbondioxide levels, and blood pH all have in common?

Answers:
They all are in the blood stream and they are necessary t to keep you alive and kicking. the levels are in a narrow range to keep you healthy. When they change, you become sick.

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who cares

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Too much or too little of any will kill you? (and yes too mcuh oxygenh is bad for you - oxygen forms highly toxic radicals with ease)

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Their properties are all in the coursework that you should have been paying attention to in class earlier this week! Call someone from school, I bet they'd be more help.

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