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Calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in the text: (a) 2H2(g) + O2 (g)--> 2H2O (l). (b) 2C2H2 (g) + 5O2 (g) --> 4CO2 (g) + 2H2O (l).
Describe synaptic tagging and capture in LTP. What kind of stimulus is necessary for new protein synthesis to occur? What kind of stimulus is necessary for a synaptic tag
A balloon filled with 2.50 moles of helium has a volume of 32.4 L. What will be the new volume if 5.90 moles are added under constant temperature and pressure?
The drum will be operated at 1.25 psi and 70 F. Do you think a horizontal tank would be larger, smaller, or the same size?
When are covalent bonds most likely to form? a. between 2 atoms with a high ionization energy b. between 2 with a low ionization energy. c when one atom high and other low d. no correct choice. (I'm leaning towards a.)
After distributing the remaining valence electrons so that the carbon and each chlorine atom has an electron octet, write the lewis structure for CCl4 in the box.
For the competitive reaction between an equimolar propanal/acetone mixture and cyanide, show that PA/PK = kA/kk
Molecules are mobile in a gas and some reactions can be run in the gas phase. Give several reasons solutions are preferable for synthetic reactions.
What main type of intermolecular attraction would you expect for cl2c0?
Calculate G°f (kJ mol -1) for glycerol and G°rxn (kJ mol -1) for the combustion of one mole of glycerol
when aluminum is heated in oxygen, aluminum oxide is formed. What weight of the oxide can be obtained from 25.0 g of the metal.
the molar enthalpy of formation for nitrogen dioxide is +33.18 kj/mol. the chemical equation that corresponds to this value of (delta)Hf is
Describe reasons the paper's physical properties are different from the water's physical properties.
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