Question

question 6 (5 points) which of the following pairs is incorrect?
a) vinegar - homogeneous mixture
b) wine - homogeneous mixture
c) graphite - compound
d) chicken noodle soup - heterogeneous mixture
e) argon - element

Explanation:

To determine the incorrect pair, we analyze each option:

• Option a: Vinegar is a homogeneous mixture (uniform composition), so this is correct.
• Option b: Wine is a homogeneous mixture (uniform throughout), so this is correct.
• Option c: Graphite is an element (pure carbon, \( C \)), not a compound. A compound consists of two or more different elements chemically bonded. So this pair is incorrect.
• Option d: Chicken noodle soup has distinct components (noodles, chicken, broth), so it's a heterogeneous mixture, correct.
• Option e: Argon is an element (atomic number 18, noble gas), correct.

Answer:

c) Graphite - compound