Lesson 1 Quiz Return to Assessment List

Lesson 1 Quiz Return to Assessment List Part 1 of 4 - 8.0/ 8.0 Points Question 1 of 12 4.0/ 4.0 Points Who discovered the atomic theory? A.Antoine Lavoisier B.John Dalton C.John Dalton and Antoine Lavoisier D.Albert Einstein E.none of the above Answer Key: B Feedback: Good! It was Dalton. Question 2 of 12 4.0/ 4.0 Points Who discovered the law of conservation of mass? A.Albert Einstein B.John Dalton and Antoine Lavoisier C.Antoine Lavoisier D.John Dalton E.none of the above Answer Key: C Feedback: Good. It was Lavoisier. Part 2 of 4 - 4.0/ 12.0 Points Question 3 of 12 4.0/ 4.0 Points A lead ball has a mass of 49.0 grams and a density of 11.3 g/cm3 . What is the volume of the ball? A.0.0340 cm^3 B.554 cm^3 C.0.231 cm^3 D.4.34 cm^3 E.none of the above Answer Key: D Feedback: Good! This is simply an application of d = m/v. Question 4 of 12 0.0/ 4.0 Points What is the volume in mL of a cube of water with dimensions 11.0 cm × 11.0 cm × 11.0 cm ? A.1.33 × 103 B.1.3 × 103 C.1.33 × 10-3 D.1.331 × 10-3 E.none of the above Answer Key: A Feedback: This is discussed in section 2.8 in the text. Question 5 of 12 0.0/ 4.0 Points When the value 98.54 is rounded to two significant figures, the number should be reported as: A.98 B.98.5 C.99 D.100 E.none of the above Answer Key: C Feedback: Rounding associated with sig figs is discussed in section 2.4 of the text. Part 3 of 4 - 4.0/ 20.0 Points Question 6 of 12 4.0/ 4.0 Points `Given the sequence of temps below, which one represents the Fahrenheit boiling, room temp, and freezing points of water, in that order? A.0-75-100 B.212-75-32 C.0-25-100 D.0-298-373 E.none of the above Answer Key: B Question 7 of 12 0.0/ 4.0 Points `How should someone classify grape juice? A.mixture-homogeneous B.pure substance-compound C.mixture-heterogeneous D.pure substance-element E.none of the above Answer Key: A Question 8 of 12 0.0/ 4.0 Points `Gallium metal will melt in your hand. Which of the following is a true statement about this process? It represents a _______. A.physical change B.chemical property C.chemical change D.distillation E.none of the above Answer Key: A Question 9 of 12 0.0/ 4.0 Points `A solid that does not have a long range repeating order is called ________. A.fixed B.rigid C.amorphous D.crystalline E.none of the above