1) All of these are pure substances EXCEPT __________________ a) element b) compound c) mixture d) molecule 2) Pure substances have __________________ a) a single type of ingredient. b) heterogeneous ingredients. c) homogeneous ingredients. d) a mixture of ingredients. 3) Atoms are to elements as __________________ are to compounds a) Mixtures b) Molecules c) Mass d) Electrons 4) Which of these is a mixture? a) Element + element b) Element + compound c) Compound + compound d) all of these 5) Two types of __________________ are homogeneous and heterogeneous. a) elements b) compounds c) mixtures d) molecules

Categorizing Matter

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