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The central atom in a molecule has three regions of high electron-pair density. What type of hybrid orbitals are formed by the central atom?
A) sp
B) sp2
C) sp3
D) sp3d
E) sp3d2
1 oz of gold (density=19.3 g/ml) can be hammered into a sheet which would cover a 1.00 x 10^2 ft^2 area what is the thickness.
For the above current at 5.45 V, how much electrical energy (in kw-hr) is consumed in the production of 1 kg of aluminum. (A kW-hr is 3.6 x106 J.)
If a message from flight control requires 170 sec to reach a satellite, how far in kilometers is the satellite from Earth?
Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4°C is 227.7 mmHg.
what is the maximum amt of (Ba2+) that can be maintained in 1.9 L of a .030 M solution of Na2SO4.
Calculate the pH at the equivalence point for titrating 0.170 solutions of each of the following bases with 0.170 M HBr.
a sample of 1.42 g of helium and an unweighed quantity of oxygen are mixed in a flask at room temperature. the partial
assume you prepare the sample corresponding to line 1 in the first table of the calculations section. if the measured
A buffer solution was prepared by adding 4.95 g of sodium acetate (NaCH3CO2) to 0.250 L of 0.150 M acetic acid (Ka = 1.75 x 10-5). a. What is the pH of the buffer
Calculate the final Celsius temperature of sulfur dioxide if 0.500 L of the gas at 35°C and 650 mmHg is heated until the pressure reaches
if a liquid has a density or 1.17 g/cm(3) and a mass of 3750 g calculate the volume?
A solution is 0.20M Ba(OH)2. How many moles of H+ must be added to neutralize 100.0ml of the solution
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