Which is not a pure substance?
A) helium
B) copper wire
C) air
D) sucrose
Correct Answer:
Verified
Q2: A(n) _ is a fixed number of
Q14: A substance that can be broken down
Q22: Which process does not involve a chemical
Q23: In general,which airborne material is not likely
Q24: Which diagram(s)best represent(s)only diatomic molecules? 
Q25: Which color,as used in the Air Quality
Q27: Which is not a single pure substance?
A)copper
B)water
C)brass
D)chlorine
Q28: The highest (or uppermost)layer of our atmosphere
Q29: The chemist,at about the time of the
Q31: Which is not a mixture?
A)a jar filled
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents