Unit 1: Element, compound, solution, or heterogeneous mixture?
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carbon dioxide
compound
grain alcohol
compound
sulfuric acid
compound
water
compound
aluminum
element
mercury
element
nitrogen
element
sulfur
element
a pencil
heterogeneous mixture
an orange
heterogeneous mixture
raisin bread
heterogeneous mixture
water and instant coffee
heterogeneous mixture
air
solution
carbon particles and sugar
solution
gasoline
solution
sugar and water
solution