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Which of the following is true of nonane, CH20, which has a density of 0.79 g/ml,...
Which of the following is true of nonane, C9H20, which has a density of 0.79 g/ml,...
Which of the following is true of nonane, C9H20, which has a density of 0.79 g/ml, melts at -51°C, and boils at 151 °C? 0 Nonane is a gas at room temperature Nonane does not undergo combustion. Nonane floats on the surface of water. Nonane is a solid at room temperature Nonane is soluble in water.
Heptane has a boiling point of 98 °C; density 0.68 g/mL. It is used as a...
Heptane has a boiling point of 98 °C; density 0.68 g/mL. It is used as a solvent for rubber cement. a) Draw the condensed structural, line angle formula and molecular formula of heptane. b) Is heptane a solid, liquid or gas at room temperature? c) Is heptane soluble in water? d) Will heptane float or sink in water? e) Write a balanced chemical equation for the complete combustion of heptane.
What is the mass of 85 ml of acetone which has a density of 0.79 g/ml?include...
What is the mass of 85 ml of acetone which has a density of 0.79 g/ml?include the formula used and units in your answer
Gallium metal melts at 29.8°C. At the melting point the density of the solid is 5-90...
Gallium metal melts at 29.8°C. At the melting point the density of the solid is 5-90 g/ml, and that of the liquid is 6.10 g ml. a Does solid gallium expand or contract when it is melted? contracts Explain The same amount of mass occupies space in the liquid phase than in the solid phase. 6. What is the change in volume when 6.10 mL (cm) of solid gallium is melted? Volume by mi Reference Lt 30.0°C.Calculate the change in...
Liquid nitrogen has a density of 0.808 g/mL and boils at 77 K. Researchers often purchase...
Liquid nitrogen has a density of 0.808 g/mL and boils at 77 K. Researchers often purchase liquid nitrogen in insulated 185 L tanks. The liquid vaporizes quickly to gaseous nitrogen (which has a density of 1.15 g/mL at room temperature and atmospheric pressure) when the liquid is removed from the tank. Suppose that all 185 L of liquid nitrogen in a tank accidentally vaporized in a lab that measured 10.00 m times 10.00 m times 3.50 m. Part A What...
can anyone explain and answer 5 and 6 please 4. Which of the following properties is...
can anyone explain and answer 5 and 6 please
4. Which of the following properties is typical of octane? a) It is a gas at room temperature b) It is soluble in hexane c) It is soluble in water d) It has a density of about 1.5 g/mL e) It is a liquid due to dipole-dipole interactions 5. Which of the following has the lowest boiling point? a)2-methylhexane b) 2,3-dimethylbutane c) octane d) 2,3,4-trimethylpentane e) 2,3,4,5-tetramethylhexane 6. Which of the...
1. Which of the following observations is/are examples of chemical change? 1. Sodium chloride melts at...
1. Which of the following observations is/are examples of chemical change? 1. Sodium chloride melts at 801 °C. 2. The density of water decreases when it changes from a liquid to a solid. 3. The combustion of propane gas yields carbon dioxide and water.
1. Indicate which of the following would be considered physical properties (P) and which would be...
1. Indicate which of the following would be considered physical properties (P) and which would be considered chemical properties (C) of iron. ー-a. Iron reacts with oxygen to form iron oxides. b. Iron is a good conductor of heat and electricity. C. Iron melts at 1535°C. d. When iron is immersed in a solution of hydrochloric acid, hydrogen gas is produced. e. Iron becomes red-hot when heated. __ f. A500-cc volume of iron has a mass of 3930 g. Iron...
The density of water at O°C is 1.00 g/mL. At 30°C the density of water is...
The density of water at O°C is 1.00 g/mL. At 30°C the density of water is 0.996 g/mL. What is the change in volume from 850.0 mL when the temperature changes from 0°C to 30°C?
1. If nitrogen gas has a density of 1.14 g/L, and an unknown gas has a...
1. If nitrogen gas has a density of 1.14 g/L, and an unknown gas
has a density of 4.2 g/L at the same temperature and pressure, what
is the ratio of the rate of effusion of the known gas to the rate
of effusion of nitrogen?
2. The combustion reaction for octane burning in oxygen is:
2 C8H18 (l) + 25 O2(g)
→ 16 CO2(g) +18 H2O(g)
∆H = -10869 kJ .
Suppose an oxygen bomb calorimeter is loaded with oxygen...
Which of the following is true of nonane, C9H20, which has a density of 0.79 g/ml, melts at -51°C, and boils at 151 °C? 0 Nonane is a gas at room temperature Nonane does not undergo combustion. Nonane floats on the surface of water. Nonane is a solid at room temperature Nonane is soluble in water.
What is the mass of 85 ml of acetone which has a density of 0.79 g/ml?include the formula used and units in your answer
Gallium metal melts at 29.8°C. At the melting point the density of the solid is 5-90 g/ml, and that of the liquid is 6.10 g ml. a Does solid gallium expand or contract when it is melted? contracts Explain The same amount of mass occupies space in the liquid phase than in the solid phase. 6. What is the change in volume when 6.10 mL (cm) of solid gallium is melted? Volume by mi Reference Lt 30.0°C.Calculate the change in...
can anyone explain and answer 5 and 6 please
4. Which of the following properties is typical of octane? a) It is a gas at room temperature b) It is soluble in hexane c) It is soluble in water d) It has a density of about 1.5 g/mL e) It is a liquid due to dipole-dipole interactions 5. Which of the following has the lowest boiling point? a)2-methylhexane b) 2,3-dimethylbutane c) octane d) 2,3,4-trimethylpentane e) 2,3,4,5-tetramethylhexane 6. Which of the...
1. Which of the following observations is/are examples of chemical change? 1. Sodium chloride melts at 801 °C. 2. The density of water decreases when it changes from a liquid to a solid. 3. The combustion of propane gas yields carbon dioxide and water.
1. Indicate which of the following would be considered physical properties (P) and which would be considered chemical properties (C) of iron. ー-a. Iron reacts with oxygen to form iron oxides. b. Iron is a good conductor of heat and electricity. C. Iron melts at 1535°C. d. When iron is immersed in a solution of hydrochloric acid, hydrogen gas is produced. e. Iron becomes red-hot when heated. __ f. A500-cc volume of iron has a mass of 3930 g. Iron...
The density of water at O°C is 1.00 g/mL. At 30°C the density of water is 0.996 g/mL. What is the change in volume from 850.0 mL when the temperature changes from 0°C to 30°C?
1. If nitrogen gas has a density of 1.14 g/L, and an unknown gas
has a density of 4.2 g/L at the same temperature and pressure, what
is the ratio of the rate of effusion of the known gas to the rate
of effusion of nitrogen?
2. The combustion reaction for octane burning in oxygen is:
2 C8H18 (l) + 25 O2(g)
→ 16 CO2(g) +18 H2O(g)
∆H = -10869 kJ .
Suppose an oxygen bomb calorimeter is loaded with oxygen...
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