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Question 1 of 254.0/ 4.0 PointsHow many significant figures are there in 0.3070 g?A. 3B. 6 C. 2D. 5E. 4
CORRECTFeedback: See Chapter 01Question 2 of 254.0/ 4.0 PointsDry ice (carbon dioxide) changes from a solid to a gas at –78.5°C. What is this temperature in °F?
Feedback: See Chapter 01Question 3 of 254.0/ 4.0 PointsSuppose a house has a floor area of 2,250 square feet. What is this area in units ofsquare centimeters?
2Feedback: See Chapter 01Question 4 of 254.0/ 4.0 PointsThe melting point of picolinic acid is 136.5°C. What is the melting point of picolinic acid on the Fahrenheit scale?
Feedback: See Chapter 01Question 5 of 254.0/ 4.0 PointsLiquid nitrogen boils at –195.8°C. Express the boiling point of liquid nitrogen in kelvin.A. –469.0 KB. all negative temperatures are 0 K on the Kelvin scaleC. –77.4 KD. 77.4 K CORRECTE. 469.0 K
K = °C + 273.15= -195.8 + 273.15= 77.35K
Feedback: See Chapter 01Question 6 of 254.0/ 4.0 Points

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