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Do ants reproduce sexually or asexually?
how many joules of energy are required to hear a 20.0 g sample of water from 50.0*C to 60.0*C
Predict the enthalpies of vaporization of 1-butanol and ethylbenzene, considering that their boiling points are 118 "C and 136 °C.
State the justification for prediction.
The following pairs of liquids are miscible. Identify the predominant type of intermolecular attraction between each pair.
a) 2-propanone and ethyl ethanoate (ethyl acetate)
b) pentane and octane
c) dichloromethane and 2-butanone
e) methanol and ethanoic acid
The following pairs of liquids are miscible. Identify the predominant type of intermolecular attraction between each pair.
a) 2-propanone and ethyl ethanoate (ethyl acetate)
Procedures in determining the critical temperature of a liquid
Determine the mass of Lead (II) Iodide produced if 9.70g of lead (II) nitrate reacts with excess sodium iodide
A helium-filled weather balloon has a volume of 649 L at 17.9°C and 758 mmHg. It is released and rises to an altitude of 4.45 km, where the pressure is 514 mmHg and the temperature is –9.1°C.
The volume of the balloon at this altitude is
A 48.0mL gas exerts a pressure of 760 mm Hg. What is the volume of the gas if the pressure is increased to 820 mmHg at the same temperature?
the reaction between solod white phosphorus and ocygen produces solid tetraphosphorusdecoxide (P4O10)
