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in a reaction mechanism the atom that gives away electron in a nutral nucleophile will end up as an, Cation or Radical or Anion?
When sodium chloride is added to the solution, no precipitate forms. when sodium sulfate is added, a precipitate forms. this precipitate is filtered of and sodium carbonate is added to the solution
In a reaction, 34.6 g of chromium(III) oxide reacts with 12.3 g of aluminum to produce chromium and aluminum oxide. If 23.7 g of chromium is produced, what mass of aluminum oxide is produced
Please explain why the Miller & Urey experiment was so important? What did that experiment tell us, How did it relate to the origin of life
suppose that a student performing an experiment mistakenly calibrated the pH meter using pH 6 instead of a pH 7 buffer. As a result all pH meter readings were too low.
Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of sodium cyanate (NaCNO) and 1.0 mole of cyanic acid (HCNO) in enough water to make 1.0 liter of solution. [Ka(HCNO) = 2.0 &time
Show the calculation for the moles of benzaldehyde, the moles of acetone, the theoretical yield of dibenzalacetone in grams, and the calculation for the % yield of the product (dibenzalacetone). Als
A street surveyconducted by Hair Club for Men foud that out of 1,000 men: 360 hadmale pattern baldness, the other 480 had non-balding andwere heterzygous, and 160 who non-balding and were homozygous
Permanganate ions, MnO4-, oxidize acetaldehyde, CH3CHO, to acetic acid CH3CO2H, and are reduced to MnO2. The reaction takes place in acidic solution.
Label the F+ strain, the F- strain, the direction of movement for DNA, and the location of the ampicillin resistant gene and the streptonmycin resistant gene
arrange the following alkenes in order of increasing heat of hydrogenation (That is, heat released when the compound is hydrogenated). 1 = lowest heat,...................5=highest heat
This sample was reacted with excess ammonia in diethyl ether at 0 c. The product mixture had a specific rotation of -29.9 degrees. If the specific rotation of pure (R) 1-phenyl ethanamine is +39.3 d
In corn plants, a dominant allele I inhibits kernel color, while the recessive allele i permits color when homozygous, the phenotypes and in what ratio of the F1 generation
The book wants to know what the ground-state electron configuration should be for Ag+. I understand that if you have a positive ion, that it is losing an electron, so the ground state would reflect
What is the density of a gas in g/L that has a molecular weight of 144, if the temperature and pressure is 25 degree C and 750 mmHg?
Which of the following substances would consist of molecules with twice the average velocity of SO2 molecules at the same temperature?
At what temperature will air (MW=29) have the same density as helium at 300 K, both gases at the same pressure.
How many molecules of gas could be confined in 230 mL at a pressure of 740 mmHg and a temperature of 25 degree C?
What is the molecular weight of thiopene, if 0.74 g of thiopene occupies a volume of 270 mL at 760 mmHg and 100 degrees C?
Can anyone explain the mechanism of evolution for prokaryotes and eukaryotes, Please use your own words and not copy from internet because I will not be able to understand
The solubility product constant for Cu(IO3)2 is 1.44 x 10-7. What volume of 0.0520 M S2O32- would be required to titrate a 20.00 mL sample of a saturated solution of Cu(IO3)2?
What mass of lithium phosphate is needed to prepare 600 ml of a solution having a lithium ion concentration of 0.225 M?
The reaction of boron with carbon monoxide produces compounds with these skeletal structures: B--B--C--O and O--C--B--B--C--O. For each of these compounds, draw the lewis structure that minimizes fo
This question concernsthree E. coli genes. Genes a and b eachencode polypeptides of 300 amino acids, while gene cencodes a polypeptide of 3,000 amino acids, Thus the mutation frequency for gene a is
how does Pigulicci's phenotypic plasticity differ from natural selection, The definition of phenotypic plasticity sounds a lot like natural selection's