Which is a pure substance existing as different phases in a heterogeneous system?
A) Salt dissolved in water.
B) Flour suspended in water.
C) Cork floating in water.
D) Ice floating in water.
Correct Answer:
Verified
Q27: Which is a solution?
A)air
B)liquid water
C)solid iron
D)soil
Q28: Which is a pure substance?
A)table salt
B)bronze
C)air
D)soil
Q29: Which is a solution?
A)element
B)compound
C)homogeneous mixture
D)heterogeneous mixture
Q30: A mixture of citric acid and water
Q31: Your lab instructor gives you a red
Q33: Which of the following diagrams represents a
Q34: " Life on Earth originated from the
Q35: What can you observe in the following
Q36: Which is a mixture?
A)copper wire
B)sugar
C)water
D)mud
Q37: Which is a pure substance ?
A)element
B)compound
C)mixture
D)both A
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