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When gasoline burns, it reacts with oxygen in the air and forms hot gases consisting of carbon dioxide and water vapor. How does the potential energy of the gasoline and oxygen compare with the potential energy of the carbon dioxide and water vapor? Explain by selecting all true statements
The potential energy of the products is higher than the potential energy of the reactants.
The potential energy of the products is lower than the potential energy of the reactants.
Heat is released by the system.
Heat is absorbed by the system.
The air in a laboratory was measured with a barometer to be 7.40 x 100 to the 2 power mm Hg. What is the laboratory air pressure in atm?
The bottle is brought outside and stored at 0.0°C. (See Table 5.2) (a) What mass of water condenses inside the bottle? _______g (b) Would water condense at 10 degrees C?
5.0 g of H2O at 23.0 oC is added to 100.0 g of H2O at 67.5 oC. What is the temperature of the resulting mixture
What is the percentage chlorine by mass in the organic compound?" and got an answer of 37.1% Cl, which im pretty sure is right.
The dipole moment (h-BR) of (a polar covalent molecule) is 0.82 (debye), and its percent ionic character is 12.1. Estimate the bond length of the bond in picometers.
Construct a reaction table for the process, and use it to calculate Kc at this temperature.
a titration curve for H3PO4 (triprotic acid) and a mixture of three weak acids?
what concentration of aqueous NaCl solution freezes at -15.2 C? the freezing point of pure water is 0.0 C and Kf of pure water is -1.86 C/m.
A sample of helium effuses through a porous container 6.5 times faster than does unknown gas X?
how many moles of glucose, C6H12O6 can be burned when 60.0 mol of O2 is available?
Write the balanced net ionic equation for the following dissolution reaction: Zn(OH)2 in aqueous NaOH
the density of liquid octane, H8H18, is 0.7025g/ml. if 1.00ml of liquid octane is vaporized at 100 degrees 100'c and 725 torr, what volume does the vapor occupy?
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