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Does the bonding character (and hence the chemical properties) of a compound have much to do with the structure of the nucleus (i.e., how many neutrons)? Or does it have mainly to do with the valence (outer) electrons?
The pressure of a gas sample varies inversely with the volume. ----E) All gas samples of the same volume at STP contain the same number of molecules.
What mass of CCl2F2 substance must evaporate in order to freeze 109 of water initially at 24 degrees celsius? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/gK .)
1.Determine the molar mass of a gas, if 3.94g of the gas occupied a volume of 3.52L at STP.
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 5.30 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C? Use Cm = 30.8 ..
Why is the Beer - Lambert law in units of absorbance rather than in units percent transmittance
A growth factor for cells was identified from extracts of rat brain. Preliminary characterization was done on this activity using several methods.
Explain the terms exergonic and endergonic reactions with examples. (Organic Chem Class)
HBr is an acid. Please write a chemical equation showing how it is an acid according to the Arrhenius definition. The response has to be in the form of a balanced chemical equation with all phases included.
What is the value of q when 7.12g of water vaporizes at 373oK? The enthalpy of condensation of water at 373oK is -40.7KJ/mol.
The reaction vessel is charged initially with SO3(g) and NO(g), each at a partial pressure of 0.500 atm. In the space below, enter the equilibrium the partial pressure of SO2(g) in units of atm
methane can be obtained from coal using a process called the gasification of coal. the global chemical equation for the
octane has a density of 0.692 gml at 20 degrees celsius. how many grams of o2 are required to burn 1.00 gal of
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