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Unformatted text preview: correct number of significant figures . Report all your answers in scientific notation . Include units where appropriate. a) (3.5 pts) 8.0065 x 10 ft + 7.715 x 10 ft =-3-3 b) (4.5 pts) (5.100 cm ) (55.76 g - 48.0135 g) 2 ))))))))))))))))))))))))))) = 3.5021 x 10 s-3 6. (2 pts) I have a bottle of Italian salad dressing. Is salad dressing a homogeneous mixture, heterogeneous mixture or a pure substance? 7. (5 pts) Ice is melting in a cup (solid going to liquid). Answer the following. The process of melting is a change. physical or chemical (circle one) The process of melting heat energy the surroundings. (Be careful.) absorbs, from or releases, to (Circle one) The process of melting is endothermic or exothermic (Circle one)...
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This note was uploaded on 07/17/2008 for the course CHEM 101 taught by Professor Stegemiller during the Summer '07 term at Ohio State.
- Summer '07