(a)
Interpretation:
4020.6 mL should be expressed in scientific notation.
Concept introduction:
The too big or too small numbers can be expressed by a way said to be scientific notation. Generally written in form of
(b)
Interpretation:
1.006 g should be expressed in scientific notation.
Concept introduction:
The too big or too small numbers can be expressed by a way said to be scientific notation. Generally written in form of
(c)
Interpretation:
100.1° C should be expressed in scientific notation.
Concept introduction:
The too big or too small numbers can be expressed by a way said to be scientific notation. Generally written in form of
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Chapter 1 Solutions
Chemistry: Principles and Reactions
- Classify each change as physical or chemical. (a) the rusting of iron(b) the evaporation of fingernail-polish remover (acetone) from the skin(c) the burning of coal(d) the fading of a carpet upon repeated exposure to sunlightarrow_forwardClassify each property as physical or chemical. (a) the tendency of silver to tarnish(b) the shine of chrome(c) the color of gold(d) the flammability of propane gasarrow_forwardClassify each change as physical or chemical. (a) A balloon filled with hydrogen gas explodes upon contactwith a spark.(b) The liquid propane in a barbecue evaporates away becausesomeone left the valve open.(c) The liquid propane in a barbecue ignites upon contactwith a spark.(d) Copper metal turns green on exposure to air andwater.arrow_forward
- Classify each property as physical or chemical. (a) the tendency of copper to turn green when exposed to air(b) the tendency of automobile paint to dull over time(c) the tendency of gasoline to evaporate quickly when spilled(d) the low mass (for a given volume) of aluminum relative to other metalsarrow_forwardA group of students took turns using a laboratory balanceto weigh the water contained in a beaker. The results theyreported were 111.42 g, 111.67 g, 111.21 g, 135.64 g,111.02 g, 111.29 g, and 111.42 g.(a) Should any of the data be excluded before the average is calculated?(b) From the remaining measurements, calculate the average value of the mass of the water in the beaker.(c) Calculate the standard deviation s and, from it, the 95% confidence limit.arrow_forwardHow many significant figures are there in each of the following?(a) 81.0 ± 0.8 (b) 3.827 ✕ 109 (c) 2.94 ✕ 10−6 (d) 0.0015arrow_forward
- Which of the following include exact numbers?(a) The speed of light in a vacuum is a physical constant; to six significant figures, it is 2.99792×108 m/s.(b) The density of mercury at 25°C is 13.53 g/mL.(c) There are 3600 s in 1 h.(d) In 2010, the United States had 50 states.arrow_forwardPerform the following conversions:(a) 10⁶°F (the body temperature of many birds) to K and C(b) 3410°C (the melting point of tungsten, the highest for anymetallic element) to K and F(c) 6.1X10³K (the surface temperature of the Sun) to °F and °Carrow_forwardExpress the following numbers in scientific notation:(a) 0.000000027, (b) 356, (c) 47,764, (d) 0.096.arrow_forward
- Which of the following statements describe physicalproperties and which describe chemical properties?(a) Iron has a tendency to rust. (b) Rainwater inindustrialized regions tends to be acidic. (c) Hemoglobinmolecules have a red color. (d) When a glass of wateris left out in the sun, the water gradually disappears.(e) Carbon dioxide in air is converted to more complexmolecules by plants during photosynthesis.arrow_forwardWhich of the following include exact numbers?(a) The speed of light in a vacuum is a physical constant; to six significant figures, it is 2.99792X10⁸m/s.(b) The density of mercury at 25°C is 13.53 g/mL.(c) There are 3600 s in 1 h.(d) In 2003, the United States had 50 states.arrow_forwardWhich of the following include exact numbers? (a) The speed of light in a vacuum is a physical constant; to six significant figures, it is 2.99792x108 m/s. (b) The density of mercury at 25oC is 13.53 g/mL. (c) There are 3600 s in 1 h. (d) In 2012, the United States had 50 states.arrow_forward
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