Carbon (C) Which of the materials most looks like a mixture? Write the names of the pure materials listed in #1 above that can be represented by one symbol or formula? and Can you tell whether a sample of matter is a mixture or a pure substance simply from its appearance? Explain your answer: You (can/cannot) tell if a sample is a mixture just by looking at it because... Heading Attachme 101 - Elements, Compounds and Mixtures + Now Rich Text Element or Compound PURE APPEARANCE SUBSTANCE OR Description of Sample: Material Homogeneous or (color, state of matter, etc.) or Heterogeneous Homogeneous Mixture or Heterogeneous MIXTURE Mixture Water (H20) Colorless, liquid Homogeneous Pure substance Compound Homogeneous Copper (11) sulfate solution Blue color, solution liquid Mixture Homogenous mixture Heterogeneous Rock Solid, hard Mixture Heterogeneous mixture Carbon (C) Black, solid Homogenous Pure substance Homogenous mixture