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Given that 25 grams of iron are produced from the reaction shown below,calculate the corresponding mass of oxygen that should be produced2FeO3 > 2Fe+ 3O2
What is the change in the volume of the balloon as it ascends to 7000ft?
76 g of Cr2O3 and 27 g of Al completely react to form 51 g of Al2 O3, how many gram of Cr are formed?
the reaction mechanisms could be coupled, how many moles of ATP will be needed to drive
What is the precipitate that forms when aqueous ammonium sulfide reacts with aqueous copper (II) nitrate
A sample of 0.05567 mole sodium acetate was dissolved into 150.0 mL of water. If 2.00g of NaOH(s) was added to the solution and allowed to dissolve
Calculate the attractive force (in Newtons) between a cation with a valence of +3 and an anion with a valence of -2, the centers
a. If a mint leaf is 12% methanol how much should be distilled? b. What temperature should the distillation take place-approximately?
Geologist can estimate the age of rocks by their uranium-238 content. The uranium is incorporated in the rock as it hardens and then decays with first-order kinetics and a half-life
the distance between layers in a crystal is 393 pm. x rays are diffracted from these layers at an angle of 39.4deg what
Hydrocyanic acid is a weak acid with Ka = 4.9 x 10-10. What is the pH of a 0.4480 M hydrocyanic solution?
Heat leaks into the interior compartment of a refrigerator at a rate of 100 cal/s. if the air outside is 30 degC, how many watts of electricity are needed to keep the interior at 4 degC. assume an ideal, reversible refrigerator.
If the temperature and pressure are kept constant during the process, how many liters of chlorine must be with titanium to produce
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