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When elemental boron, B, is burned in oxygen gas, the product is diboron trioxide. If the diboron trioxide is then reacted with a measured quantity of water, it reacts with the water to form what is commonly known as boric acid, B(OH)3. Write a balanced chemical equation for each of these processes. (Use the lowest possible coefficients. Omit states-of-matter in your answer.)
He is heated until the pressure reaches 3.50 atm. What is the final temperature in degrees Celsius
The cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-cell- Pt(s)[H2(g, 1atm)][H+(aq, 1.0M)][A^3+(aq,?M)]Au(s)
a 3.60 l cabr2 solution of unknown concentration is added to 1.40l of 0.435 m kbr solution. the br- of the resulting
determin the rate for the reaction. (B) how long would it take for 25% of the reactant to decompose?
A piece of gold foil has a volume of 0.645cm^3. If the piece of gold measure 10.0 cm by 12.5cm, what is the thickness of the foil
A swimming pool is 27.31 yards long and 37.55 feet wide. The pool is filled with water from a hose that has a flow rate of 2.837 gallons/second. How many minutes will it take to fill the pool to a depth of 5.004 feet
A voltaic cell consists of a Hg/Hg2^2+ electrode(E degrees=0.85V) and a Sn/Sn^2+ electrode(E degrees=-0.14V). Calculate[Sn^2+]if [Hg2^2+]=0.36 M and Ecell=1.04V at 25 degrees C.
Small helium-neon lasers emit 3.50 mJ/s of light at 634 nm. How many photons does such a laser emit in one minute?
The following reaction is example of elimination and substitution reaction. Categorized this reaction as an E1, E2, or SN1, SN2 CH3CH2O¯ + CH3CH2Br ? CH3CH2OCH2CH3 + Br¯ Please, explain.
Compute the number of molecules of substrate converted to product per molecule of trypsin per minute The MW of trypsin is 15,000 as well as has one active site per molecule
What is the change in internal energy (in J) of a system that absorbs 0.330 kJ of heat from its surrounding and has 0.586 kcal of work done on it in scientific notation.
State mechanism of aniline to acetanilide using ethanoic acid and ethanoic anhydride, then write mechanism of acetanilide top-bromoacetanilide using bromine, then state mechanism ofp-bromoacetanilide to 4-bromoaniline using NaOH & HCl.
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