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When the following equation is balanced, the coefficient of H2 is ________.
CO (g) + H2 (g) → H2O (g) + CH4 (g)
Select one:a. 4 b. 0 c. 2 d. 1 e. 3
How many atoms of all kinds. What is the mass of manganese in a sample of MnO2 containing 2.86 x 10^24 atoms of oxygen
A 2.52- sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess to yield 4.36 of and 0.892 of as the only carbon and hydrogen containing products respectively.
Important information about Galvanic cell, Consider a galvanic cell consisting of Sn wire immersed in a solution containing 10^-10 M Sn(NO3)subscript 2 and 1 M HNO3 and Ag wire immersed in 10^-2 M AgNO3 and 1 M HNO3.
hematite iron ore weighting 70.7g was placed in a flask whos volume was 53.2ml. the flask with hematite was carefully
How long would it take for 1.50 of water at 100.0 to be converted completely into steam if heat were added at a constant rate of 18.0
Calculate the wavelength of the n=4 to n=1 and the n=4 to n=3 transitions. Indicate in which regions of the electromagnetic spectrum these transitions would occur.
Two compounds have the same empirical formula. One substance is a gas, the other is a viscous liquid. How is it possible for two substances with the same empirical formula to have markedly different properties?
What would happen to the A450 valure for a sample as test tube#10(is included 1ml of 0.0025M Fe(NO3)3 , 1ml of 0.0025M KSCN, and 5ml of 0.1M HNO3 ) ,if accidentally added 5 drops of disodium hydrogen phospate
given what you know of dna rna and proteins why does it make sense that nucleic acids can serve as templates to make
Question- The typical energy differences for transitions in the microwave, IR, and electronic spectroscopies are 5x10^-22 J , 0.5x10^-19 and 1x10^-18 J. Calculate the ratio of the number of molecules in two adjacent energy levels at 300 K in each ..
3.24 x 10-3 g of a protein was dissolved in water (total vol. of 5.00 mL). Given the osmotic pressure of the solution was 1.50 x 10-3 atm and the temperature is 298.0K, calculate the molar mass of the protein.
What molarity of aqueous magnesium chloride solution can be expected to show the same conductivity as 0.0075 M aluminum sulfate at 15,000 units.
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