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Marble statuses erode when exposed to acidic precipitation Give a brief chemical explanation for this erosion
the most common source of copper is the mineral chalcopyrite. how many kilograms of chalcopyrite must be mined to
assume that you have two unlabled bottles, one with cyclohexane and one with cyclohexene. How could you tell them apart by carrying out chemical reactions
Calculate the mass percent of methanol, ethanol, and MTBE, that must be present in gasoline to yield a mixture of 1.8% oxygen by weight.
Celsius the initial sample contained 0.0718 grams of calcium. What percent of the limestone by mass is CaCO3?
Predict the formula and name of a binary compound formed from the following elements: (a) Na and H, (b)B and O, (c) Na and S, (d) Al and F, (e) F and O, (f)Sr and Cl.
When 150g of water at a temperature of 22.5C is mixed with 65.5g of water of an unknown temperature. The final temperature of the resulting mixture is 47.9C. What is the initial temperature of the second sample
An Ideal Gas: What makes it so? Molar mass defined A Unified Gas Law: Application to problem solving What about non-ideal (or real) gases?
Based on your knowledge of the TLC of the components of Excedrin, propose an experiment that would separate these components, including the order of elution off a chromatography column.
Molecular iodine, dissociates into iodine atoms at 625 with a first-order rate constant of 0.271. what is the halflife
The initial temperature of the calorimeter is 18.5°C and the final temperature is 25.6°C. Assume that the heat capacity of the calorimeter is 4.86 J/g°C. Calculate the enthalpy of the reaction.
a burning candle produces a luminous flame. What is the fuel for the burning candle. Why is the flame luminous
Balance the following full redox reactions using the lowest integer coefficients, in basic conditions. NiO2(s) + Zn(s) ? Ni(OH)2(s) + ZnO22?(aq)
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