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A small speck of carbon the size of a pinhead contains about 10^19 atoms, the diameter of a carbon atom is 1.5 x 10^(-10)m, and the circumferemce of the earth at the equator is 40075km. How many times around the earth would the atoms from this speck of carbon extend if they were laid side by side
Why are chromatographic peaks broader than would be expected solely on the basis of the random nature of solute migration
The energy bar contains 100 mg of sodium, which constitutes 4% of the maximum recommended daily intake of sodium.
Air bags are activated when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. This causes sodium azide (NaN3) to decompose explosively according to the following reaction.
A well-insulated rigid tank of volume 0.2 m3 initially contains helium at 70°C and 200 kPa. A valve connected to the tank is opened, and helium is withdrawn slowly until the pressure within the tank drops to p. An electrical resistor inside the ta..
determine the mass of carbon dioxide produced when .85 grams of butane reacts with oxygen according to the following
at room temperature 20circ rm c milk turns sour in about 63 hours. in a refrigerator at 3circ rm c milk can be stored
The four molecular p orbitals of the four carbon atoms can be lined up parallel in order to create four new molecular orbitals. The electrons in the new molecular orbitals benefit because they are not confined to just one atom.
A reaction that is spontaneous can be described as a releasing heat to the surroundings. b. increasing in disorder. c.proceeding in both the forward and reverse directions.
For the following, provide a structure of the molecules described. If the name is incorrect please provide the correct IUPAC name. 3-(1-cyclobutylethyl)-5-[3-cyclopropyl-1-(3-bromo-2-(1,1-dimethylethyl)propyl)propyl]cyclohexane.
sample melts before you were ready to read the temperature. Should you cool the capillary and start again or prepare a fresh sample? Explain.
An aqueous solution of a soluble compound (a nonelectrolyte) is prepared by dissolving 33.2 g of the compound in sufficient water to form 250 ml of solution. The solution has an osmotic pressure of 1.2 atm at 25 Celcius. What is the molar mass (g/..
If there was 0.5011g of KClO3 in the original mixture, what is the true percent of KClO3?
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