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A bird is flying around the world at a rate of 8.85 ft/sec. How many days will it take to complete its journey? (circumference of earth = 24,900 miles. need to see how it was worked
Write the balanced formula unit equation for the reaction of sodium with oxygen (use major product). What is the sum of the coefficients
Calculate the composition of the vapor (mole fraction of each component) that is in equilibrium in the solution at the boiling point of this solution
how many grams of sodium lactate should be added to 1.00 of 0.150 lactic acid to form a buffer solution with 4.00?
Calculate the solubility of copper (II) iodate in 0.56 M copper (II) nitrate. Ksp* is 7.4x10-8 M3.
Heavy water has a formula D2O, and semi-deuterated water has the formula DHO, where D stands for deuterium. Using the data below, etimate the percentages of D2o and DHO present in natural water
Which statement is not true about fission? Answer a. process requires initiation by a neutron b. products have smaller nuclei than reactants c. combination of atomic nuclei d. critical mass produces a chain reaction
The major reason that antiparallel beta-stranded protein structures are more stable than parallel beta-stranded structures is that
what are the relative energies of the orbitals defined by n=4? if this atom is placed in a magnetic field, how would the relative energies of these orbitals change and why
A 1.750-g sample containing potassium hydrogen carbonate is decomposed by heating. If the mass loss is 0.271g, what is the percentage of KHCO3 in the unknown mixture
When naming cis/trans isomers, when will i have cis,cis or trans,trans, or cis/trans.-more than one cis and trans.
A steel cylinder of oxygen has a volume of 20.0 L at 22degrees C at 35 atm. What is the volume at STP? How many mol of oxygen
To an aqueous sodium chloride solutions we add another 100 g of NaCl, and all of the added NaCl dissolves. This implies that the initial sodium chloride solution was:
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