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Bingel [31]
3 years ago
6

WORTH 40 POINTS HELLPPPP What class of element is Astatine (At)?

Chemistry
1 answer:
nordsb [41]3 years ago
3 0

Answer:

halogen.

nonmetal.

Explanation:

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By observing (measuring) the dependent variable, while only one independent variable changes you can understandhow such independent variable explains (determines) the dependent variable, leading to a conclusion.

Conversely, if two or more independent variables change at a time, then there is no way that you can tell how the output (dependent variable) is related with one or other of the changes of the indipendent variables. You wolud not be able to discriminate (distinguish) the effect of one or other variable, making the experiment inconclusive

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