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The formaldehyde molecule has a ? bond between the carbon and oxygen atom. Which of the following statements about this bond is not true? A) This bond has two overlap sites that occur above and below the C-O axis. B)The figure-8 bond orbitals around the carbon and oxygen atoms actually extend to infinity but do have two overlapping areas. C)This bond is the result of the interaction of an unpaired carbon electron in the 2s orbital and an unpaired oxygen electron in the 2p orbital. D)Because carbon has four valence electrons and three of them were assigned lone electron sites in the three hybrid orbitals, there is one 2p orbital left in the carbon atom that participates in this ? bond
if the initial water level in the graduated cylinder is 21.2 ml and the level rises to 27.7 ml after the object is placed in the cylinder, what is the volume of the object?
A calorimeter temperature increased by 0.45 0C after adding 30 joule OF ENERGY TO IT BY ELECTRICAL HEATING and the temperature increased by 7.3 0C when 0.10 grams of HCl is neutralize in the same calorimeter now determine the specific heat of neut..
How much heat is required to vaporize 353 g of liquid ethanol at its boiling point? ΔHvap = 38.6 kJ/mol.
The kinetic energy of the ejected electron is given by 1/2 mv2= h v -?. where m and v are the mass and velocity of the electron
For the reaction 2 HCl + Na2CO3 → 2 NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP
Calculate the value of delta S when 1.85 mol CH3OH (l) of is vaporized at 64.7 C. The normal boiling point of methanol is 64.7 C.
What is the energy per photon of the lowest frequency of electromagnetic radiation that can be used to observe a gold atom with a diameter of 280 picometers.
The amount of heat needed to raise the temperature of 25 g of a substance by 15°C is 915 J. What is the specific heat of the substance?
Standard potentials measured against the standard hydrogen electrode, Standard potentials are measured against the standard hydrogen electrode (S.H.E.). Because it is not always convenient to use a S.H.E
The combustion of ethane produces carbon dioxide and steam: 2C2H6 + 7O2 --- 4CO2 +6H20 How many moles of CO2 are produces when 5.55 mol of ethane are burned in an excess of oxygen.
Nitrogen dioxide decomposes at 6.50 x 10-3 M s-1 during the reaction: 2NO2(g) --> 2NO(g) + O2(g) Answer the following questions:
The following reaction is investigated (assume an ideal gas mixture): 2N2O(g) + N2H4(g)-> 3N2(g) + 2H2O(g) Initially there are 0.10 mol N2O and 0.25 mol N2H4, in a 10.0 L container. If there are 0.06 mol of N2O at equilibrium, how many moles of N..
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