Answer:
answer A makes the most sense
Explanation:
it's the only one the describes measuring the acid in the air from a factory (humans) I may be wrong tho
The answer would be A) Physical Change. When the silver tarnishes it is still remnants of silver. If it were B, the silver would change into a different substance.
Answer:
ratio=0.996m/s
Explanation:
; M= molecular weight of compound;
RMS speed is inversly proportional to the molecular weight hence compound having less molecular weight will have more rms speed value.


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=ratio of
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