★ Chemistry Quiz
What is nanotechnology?
A. Study and manipulation of technology that is micro sized
B. Study and manipulation of matter that is small but can still be seen by the human eyes
C. Study and manipulation of matter at a scale of 1-100 nano meters
D. Study and manipulation of matter that moves at a speed measured in nano seconds
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the solution which has pH less than 7 considered :
A. acid
B. base
C. neutral
D. salt
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