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Consider the following two redox reactions in the nitrogen cycle:
a. NH4+ + O2 = NO3- (Nitrification)
b. NO3- + CH2O = N2O + CO2 (Denitrification)
Both are currently unbalanced. Using the " half reactions method", balance both of the equations, and be sure to show all of your work.
patients undergoing an upper gi tract lab test are typically givenan x-ray contrast agent that aids with the radiologic
Chemical changes be be both useful and destructive to humanitys purposes. Cite a few examples of each kind of change from your own experience. Also give evidence from observation that each is indeed a chemical change and not a phsycial change
a 4.50-g sample of licl at 25.0 degc dissolves in 25.0 ml of water also at 25.0 degc . the final equilibrium
Since water does absorb CO2 from the atmosphere and since CO2 dissolved in water causes it to be slightly acidic, will the use of deionized water that has not been previously boiled cause the mass of acetic acid in the vinegar to be calculated as ..
Sports drinks are beverages designed to replenish water, salts, sugars and other nutrients. A particular sport drink contains 600 ppm sodium by mass. How many mg of sodium would be in a 16.0 oz bottle of this beverage
How many kilojoules of heat are required to melt a 10.0-g popsicle at 0 C? Assume the popsicle has the same molar mass and heat of fusion as water.
What is the volume occupied by 27.0g of argon gas at a pressure of 1.08atm and a temperature of 320K
Question- Estimate the calcium concentration in a groundwater sample, which has a pH of 5.50. Assume that the groundwater at his location is saturated with CO2 at a partial pressure of 0.1 atm.
A solution of I2 was standardized with ascorbic acid. Using a 0.100 g sample of pure ascorbic acid, 25.32 ml of I2 were required to reach the starch end point.
For this discussion, please describe the difference between mandated and nonmandated benefits and give examples of each. Many companies, such as Google and Whole Foods give numerous nonmandated benefits to workers, as well as employee "perks," such a..
A physician studying a mutant, hemoglobin, blood protein dissolves 0.0215 grams of this protein in water at 5.0 °C to make 1.50 ml of solution. The osmotic pressure of this solution is 0.00475 atm. What is the molar mass of this protein
A bicyclist passes beneath it, traveling in a straight line at the constant speed of 10 m/sec. How fast is the distance between the bicyclist and the balloon increasing 2 seconds later?
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