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Igniting a mixture of powdered iron (II) oxide as well as aluminum produces a vigorous reaction in which aluminum oxide and iron are the products, how do you state a balanced chemical equation for this chemical reaction?
An aqueous solution that contains 285ppm of potassium nitrate (KNO3) is being used to feed plants in a garden. What volume of this solution is needed to prepare 1.7 L of a solution that is 97 ppm in KNO3?
The molar mass of quinine is 324 g/mol. Determine the empirical and molecular formulas of quinine. (Type your answer using the format CO2 for CO2 and use the order CHNO) empirical molecular
A substance has a molecular mass of 100g/mol. How many ug are in a 700mm3 volume of a 2mM solution?
In the reaction of Fe3O4 with carbon to form carbon dioxide and iron, the number of moles of carbon required to convert 23 g of Fe3O4 to products is
the temperature difference between the inside and the outside of an automobile engine is 450c. express this temperature
a.) because Qc= 1, the system is at equalibrium. b.) Because Qc=1, more products will be formed. c.) Because Qc=1, more reactants will be formed. d.)Because Qc Kc,more reactants will be formed
Isra fills two identical balloons at identical temperatures. She fills one with O2 gas and the other with O3 gas. Which balloon will deflate faster? Why?
consider the electrolysis of molten barium chloride bacl2. a write the balanced half-reaction that occurs at the
assuming ideality calculate the vapor pressure of a 1.00 molal solution of a nonvolatile solute in water at 50 degrees
As the protons are transported into the cell, ATP synthesis can be coupled to this process by the enzyme ATP synthase. At 100% efficiency, under the conditions listed above, how many protons must be transported to synthesize one molecule of ATP
Calculate the pH of the resulting solution after the following volumes of HNO3 have been added. (e) 50.0 mL (f) 100.0 mL Show the work please
A 0.300 M solution of an acid, HZ, has a pH = 1.301. What is the value of the ionization constant, Ka, for this acid?
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