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Question- The oxidation number of O is usually -2. Because magnesium oxide is a neutral compound, what must the oxidation number of Mg in this compound be?
Solve the above problem in detail no word count
suppose a snack bar is burned in a calorimeter and heats 2000 g water by 20 degc. how much heat energy was released?
A compound has a molar mass of 171.6g/mol and contains 55.94% oxygen atoms by mass. How many oxygen atoms are in each molecule of this compound
steam from a boiling teapot 100 degc hits a persons hand and causes a burn. assuming 1 g of water vapor condenses to
The bond dissociation energy of H2 and Cl2 are 436 and 242 kJ/mol, respectively. The Pauling electronegativity of H and Cl are 2.3 and 3.2. What is the HCl bond dissociation energy
What mass of ethylene glycol, when mixed with 225 g H2O, will reduce the equilibrium vapor pressure of H2O from 1.00 atm to 0.800 atm at 100 °C?
silver nitrate agno3 reacts with ferric chloride fecl3 to give silver chloride agcl and ferric nitrate feno33. in a
essential to prevent uncontrolled raise of the rate of chain reaction in the nuclear power plant. Can you try to find additional information how rate of chain reaction
Calculate the standard emf of a cell that uses Mg/Mg2+ and Cu/Cu2+ half-cell reactions at 25°C.
Question- Iron(II) in aqueous solution can be quantities by anoxidation- reduction process using dichromate,Cr2O72-, Cr2O72-(aq) + 6Fe2+(aq) +14 H+(aq) ? 2Cr3+ (aq) + 6Fe3+(aq) +7H2O Write the balanced half reactions for the oxidation of Iron (II)..
Calculate the concentration of CO2 in champagne at 20 °C if the partial pressure of carbon dioxide is 5.0 atm and the Henry's law constant for CO2 is 0.023 mol·L-1·atm-1
a solution contains the sodium salt of an anion. the followingtests are performed to identify the anion.1 the solution
In a separate experiment, 41.6 g of ClF3 was introduced into an empty 2.00 L container at 700.0 K . What are the concentrations of ClF3, ClF, and F2 when the mixture reaches equilibrium
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