1. A mixture of water and oil is _______ in nature.   heterogeneous   homogeneous   2. Which of the following is the smallest part of a compound, whose properties are the same as those of the compound?   Element   Mixture   Molecule   Atom   Hint Half-n-half Clue   3. H2 and Fe represent _______.   elements   mixtures   compounds   Half-n-half Clue   4. Which of the following is a pure substance made up of one type of atoms?   Mixture   Compound   Element   Half-n-half Clue   5. The constituents of a mixture do not retain their original properties.   True   False   6. Stainless steel is a mixture (alloy) of _______, _______, chromium, and nickel.   aluminum, tin   copper, zinc   lead, magnesium   iron, carbon   Half-n-half Clue   7. Copper sulfate solution can be further subdivided into simpler substances by physical (mechanical) means. Therefore, it is _______.   a compound   a mixture   an element   Half-n-half Clue