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Problem- What is the oxidation number change for the bromine atom in the following unbalanced half reaction? BrO3-(aq) + H+(aq) -> Br-(aq) + H2O(l)
Rework your solution from the beginning and check each step carefully.
Consider the filling order for electrons. If an atom has the following electron configuration, where would the next electron be placed? [Ne]3s23px23py2 3pz1 Answer a. 3px b. 3py c. 3pz d. 4s e. 4p3
two scientists are experimenting with pure samples of isotope x a highly radioactive substance. the first scientist has
Two separate flasks are each filled with a gas at 25.0°C; the valve between them is opened and the gases are allowed to mix. What would be the mole fraction of NO after mixing, if initially NO is in the first flask (Volume = 1.000 L) at 275.3 torr..
A patient is given 0.050 mg of technetium-99m where m means Meta stable - an unstable but long-lived state, a radioactive isotope with a half-life of about 6.0 hours. Explain how long until the radioactive isotope decays to 6.3 x 10(-3) mg
How much heat would be given off per mole of NaOH if 4.6g of NaOH dissolves to give off 755J of heat? b)How many grams of NaOH are needed to produce 88 kJ of heat? Please explain the steps to get the answer
Explain what is the silver ion concentration in a solution prepared by mixing 437mL of 0.364 M silver nitrate with 457mL of 0.436 M sodium chromate. The Ksp of silver chromate is 1.2 × 10-12
In the first step of the Ostwald process, ammonia is reacted with oxygen gas to produce nitric oxide and water. What is the maximum mass of H2O that can be produced by combining 75.6 g of each reactant
Under constant pressure conditions, a sample of hydrogen gas initially at 88.0 degree C and 9.50 L is cooled until its final volume is 3.00L. what is its final temperature
What is the empirical formula of the compound if a 5.56 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion producing 12.64 mg of CO2 and 5.16 mg of H2O
A reaction mixture initially containing 0.520 M H2S and 0.520 M SO2 was found to contain 1.0 x 10 -3. A second reaction mixture at the same temperature initially contains 0.245 and 0.335. calculate the equilibrium concentration of H2O in the secon..
Depict a structure consistent with the subsequent set of data- a hydrocarbon with a molecular ion at m/z = 68 and an IR absorptions at 3310, 3000-2850, and 2120 cm-1
State a balanced chemical equation for the reaction that occurred. Keep in mind that halides are present in solution as sodium salts. Example sodium bromide
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