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- 1. Multiple ChoiceThe dimensions of a rectangular solid are 8.00 cm long, 4.00 cm wide, and 2.00 cm high. If the density of the solid is 10.0 g/cm3, what is its mass?10.0 grams64.0 grams320. grams640. grams
- 2. Multiple ChoiceA student does a calculation using her calculator and the number 280.27163 is shown on the display. If there are actually three significant figures, how should she show the final answer?280280.32.80 x 1022.80 x 10-2
- 3. Multiple ChoiceThe term that refers to the reproducibility of a laboratory measurement isprecisionrepeatabilityaccuracyexactness
- 4. Multiple ChoiceWhich measurement below is NOT written with three significant digits?2.00 cm550. grams0.003 L12.7 mm
- 5. Multiple ChoiceAll the following are characteristic properties of phosphorus. Which one is a chemical property?Both red phosphorus and white phosphorus exist in solid allotropic formsThe red form melts at about 600°C and the white form melts at 44°CThe white form is soluble in liquid carbon disulfide, but is insoluble in waterWhen exposed to air, white phosphorus will burn spontaneously, but red phosphorus will not
- 6. Multiple ChoiceA solution of sugar water may be defined as ahomogeneous mixtureheterogeneous compoundhomogeneous compoundheterogeneous mixture
- 7. Multiple Choice
The marks on the following target represent someone who is:accurate, but not preciseprecise, but not accurateboth accurate and preciseneither accurate nor precise - 8. Multiple ChoiceWhich one of the following elements is correctly matched with its symbol?Ag, goldNi, nickelFl, fluorineMg, manganese
- 9. Multiple ChoiceWhat is the formula of the ionic compound formed between Ca and P?Ca2P3Ca2PCaPCa3P2
- 10. Multiple ChoiceThe correct name for CCl4 iscarbon(I) chloridecarbon chloridecarbon tetrachloridemonocarbon chloride(IV)
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