Elements, Compounds, or Hetero/Homo Mixtures???

Question

can you help me identify the following,,,?

1.) salad dressing
2.) motr oil
3.) pancake syrup
4.) marbel chips
5.) paper towel
6.) coal
7.) glass
8.) sand
9.) wood
10.) salt water

and can you tell me your reason why?

how about candle for #11?

what about air, and salt/sand mixture?

Answer 1

1) Heterogeneous mix, oil & vinegar
2) Homogeneous mix of hydrocarbons
3) Homo solution of sugar, water, and other solubles
4) Compound CaCO3
5) Heterogeneous mix of cellulose molecules of dfifferent mol. wts.
6) Hetero mix of carbon and hydrocarbons
7) Glass homo mix of nonmetal,metal oxides
8) Sand compound SiO2
9) Wood hetero mix of cellulose, lignin, others
10) Salt water homo mix NaCl & H2O
11) Candle hetero mix of various hydrocarbons and the string wick