Asked by marie
Which cannot be separated into simpler substances by physical or mechanical methods such as filtering, boiling, or sifting?
A. a crystalline solid
B. a sublimation
C. a pure substance
D. an amorphous solid
I think it is A am I right?
A. a crystalline solid
B. a sublimation
C. a pure substance
D. an amorphous solid
I think it is A am I right?
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