Honeydew melons are high in potassium, a nutrient needed for proper fluid balance [875 mg in one serving (one-quarter of a medium melon)]. If an individual eats one serving each day for a week, how many grams of potassium are obtained?

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it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;