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- 1. Multiple ChoiceThe central principle of modern chemistry states that all substances are ultimately composed ofatomselectronscellsions
- 2. Multiple ChoiceA set of tested hypotheses that gies an overall explanation of some natural phenomenonan experimenta lawa hypothesisa theory
- 3. Multiple ChoiceThe measure of the resistance of an object to a change in its state of motion isVolumeMassMolesWeight
- 4. Multiple ChoiceRefers to the agreement of a particular value with the true valueAccuracyprecisionclosenesssignificant figures
- 5. Multiple ChoiceRefers to the degree of agreement among several measurements of the same quantity. Refers to the reproducibility of a given type of measurement.Accuracyrandom errorprecisionspot on
- 6. Multiple ChoiceA pencil is 7.00 inches long. How long is it in centimeters? Remember there is 2.54 centimeters per each inch. Use the appropriate number of significant digits.17.8 cm17.78 cm18 cm2.75 cm
- 7. Multiple ChoiceAt what temperature does water boil?212 ° F100 ° C373.15 ° KAll of the answers
- 8. Multiple ChoiceHow can you separate the parts of a mixture?DistillationFiltrationChromatographyAll of the answers
- 9. Multiple ChoiceBoiling and freezing are examples of chemical changes.TrueFalse
- 10. Multiple Choice
A homogenous mixture has visibly indistinguishable parts.TrueFalse - Answer choicesTagsAnswer choicesTags