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?
Answered by marie
anyone?
Answered by DrBob222
I don't think it's A.
Answered by Weather
A is incorrect. Please re-read this question carefully and when you're done, please try again.
Answered by haikyuu
what is the correct answer then?????
There are no AI answers yet. The ability to request AI answers is coming soon!