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pantera1 [17]
3 years ago
12

I need help, pls someone help me!!

Chemistry
2 answers:
Lemur [1.5K]3 years ago
7 0
AHH I CANT READ THE THING IM SO SORRY IT WONT LOADDD
ra1l [238]3 years ago
3 0
There are several chemicals that should never go down the drain. If they do, they must only go down the lab sink drain and be flushed after with water, so that there isn’t a risk of another chemical mixing with it at a later time. For chemicals that cannot be poured down the lab sink, store them in appropriate containers; plastic bottles are preferred over glass for storing hazardous waste when compatibility is not an issue.
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Answer:

b. independent/manipulated variable

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Independent/manipulated variable - refers to the variable that is changed by the scientist or an experimenter. Only one variable that is independent is required to ensure a fair test in an excellent experiment. As the independent variable is being changed by an experimenter or scientist, data is being recorded simultaneously as they are collected.

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A dependent valuable is a valuable whose variation depend on another variable usually the independent variable. An independent variable is a variable whose variation do not depend on another variable but the reseacher experimenting.

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