Why do microbes reduce nitrate to N2 (denitrification)? Denitrification causes loss of N from soils to the atmosphere. How can it be minimized?

Q: 0 Why is the photodissociation of N2 in the atmosphere relatively unimportant compared with the…

A: Photodissociation of N2 in the atmosphere relatively unimportant compared with the photodissociation…

Q: Which of the following would help the most to fight the current processes that are shifting Earth's…

A: C- reduction in atmospheric carbon. Explanation: Climate change is defined as the shift in climate…

Q: How organisms affect crustal abundances of elements, especially oxygen, carbon, calcium, and some…

A: Chemical element or simply element is any substance hat cannot be decomposed into simpler units by…

Q: Form a hypothesis that might explain which season is CO2 concentration the highest and which season…

A: The carbon dioxide, CO2 concentration in the environment varies in different seasons of the year due…

Q: Which of the following is not indicated by this reaction? I ... KI, H;PO4 ether, 25° C The reaction…

A: We have to choose incorrect from the following given options as follows in step 2:

Q: An Olympic gold medal must contain a minimum of 6 grams of gold (MW = 196.97 g/mol) and has at least…

A: Given : Current supply = 50 A Gold amount to be deposited per medal= 6 g Total amount of Au= 340 x6…

Q: Since the rate of ozone destruction depends on [Cl], can Cl be considered acatalyst for the reaction…

A: CFC molecules are made up of chlorine, fluorine and carbon atoms and are extremely stable. This…

Q: Given the following reaction for chemosynthesis, how many grams of Sg are produced for every 12.5…

A: molecular weight of co2 = 44 gm /mol for 12.5 gm of co2 = 12.544 = 0.28409 mol of  co2  molecular…

Q: Sodium oxalate, Na,C,04, in solution is oxidized to CO,(g) by Mno, , which is reduced to Mn*. A…

A: The titration which involves a redox reaction between analyte solution and a titrant to determine…

Q: Why does less iodine cause giiter

A: Thyroid gland uses iodine to make thyroid hormones , this hormone is required to control the level…

Q: Why do certain microbes oxidize ammonium and sulfide? How do these processes affect soil fertility?

A: Soil fertility of a land determines the capacity of soil to provide essential nutrients required for…

Q: Explain the formation of photochemicals smog sourced form vehicles

A:

Q: Chemical reduction is used to convert inorganic substances to a less mobile and toxic form. How is…

A: Chemical reduction  is used for removal of various kinds of organic /inorganic  materials.It helps…

Q: Explain the michaeli's equation?

A: The enzyme surface contains a definite amount of active sites, where the substrate can get attached.…

Q: Mg+Cu(NO3)2⟶Mg(NO3)2+Cu

A: Yield

Q: What Characteristics of Potassium minerals makes them suitable to be used as fertilizers

A: 1) Potassium is needed to complete many essential functions in plants, such as synthesizing proteins…

Q: 6. What is a zeolite? How does it differ from a catalyst support?

A:

Q: explain the difference between oil/ natural gas and coal, in terms of: a. The origin of organic…

A: Fossil fuels, such as oil, coal, and natural gas, are generated from the remains of dead animals and…

Q: fuel cell uses which of the following reactions to generate electricity?     the radioactive decay…

A: In this question, we will Identify which process in a fuel cell generated electricity. You can see…

Q: From the study of Figure 18.23 describe the various ways in which the operation of a fracking well…

A: Fracking is the process of drilling down into the earth before a high-pressure water mixture is…

Q: nuclear Chemistry when you look several older cars that are showing initial signs of rust formation,…

A: When metals react with gases, chemicals, and water (moisture) present in the environment they get…

Q: Assuming an efficiency of 23.20%, calculate the actual yield of magnesium nitrate from 146.9 g of…

A: The chemical balanced reaction between magnesium (Mg) and copper (II) nitrate is given as follows:

Q: .Why is potassium nitrate also in airbags? 6. Write the balanced equation for the reaction between…

A: Interpretation -  To tell about why potassium nitrate also in the airbags . To write the balance…

Q: Assuming an efficiency of 43.20%,43.20%, calculate the actual yield of magnesium nitrate formed from…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: What are the proposed methods for introducing the CO2 into the ocean?

A: Greenhouse gas is caused because of emission of carbon dioxide.  Carbon sequestration method is the…

Q: AJ Why are Iroh oxides in rocks evidence for prehistoric photosynthesis? (1 Iron oxides form when…

A: Please find your solution below : In the prehistoric period, primitive photosynthetic blue/green…

Q: Why is lead(Pb) connected with chemistry and biology?

A: Lead (Pb)  is a heavy metal with an atomic number of 82 with an electronic configuration of…

Q: Why are nitrogen compounds limited in the biosphere?Give two reasons.

A: Animals can use only organic nitrogen, which they obtain by consuming plants or other animals.…

Q: How the CO2 will disperse and react once released into the ocean?

A: How the CO2 will disperse and react once released into the ocean

Q: Explain how EDTA can be used to clean up a water source contaminated with heavy metals?

A:

Q: Why is using gas as a fuel for power generation better than either oil or coal in terms of CO2…

A:

Q: Why do heavy metals, like Hg2+ and Pb2+ , cause poisoning? How does an antidote, like milk or raw…

A:

Q: Assuming an efficiency of 41.40%,41.40%, calculate the actual yield of magnesium nitrate formed from…

A: Mg(s) + Cu(NO3)2 ----------> Mg(NO3)2 + Cu Moles of Mg reacting = Mass of MgMolar mass of Mg =…

Q: 7. Applying the principles of green chemistry requires some consideration of the way in which they…

A:

Q: 3. Compare and Contrast the Nernst's equation to GHK equation.

A: The Goldman Hodgkin Katz (GHK) equation is the voltage equation commonly called the Goldman…

Q: Which method are not the way to mitigate the risk of heavy metals? Increasing soil pH with lime O…

A: The presence of heavy metal ions in the soil can make the soil toxic for the growth and development…

Q: Assuming an efficiency of 32.70%,32.70%, calculate the actual yield of magnesium nitrate formed from…

A: Given for the following Reaction, efficiency is 32.70% - Mg+Cu(NO3)2⟶Mg(NO3)2+Cu   Here , the Atomic…

Q: What is the effect of Arsenic in human and environmental health?

A: Arsenic is a metalloid. Its atomic number is 33 and symbol As. Arsenic belongs to the Nitrogen…

Q: All of the following contribute to nitrogen-fixation except Select one: a. lightning b. bacteria on…

A: nitrogen fixation is the process through which moleculer nitrogen which is present in the atmosphere…

Q: What type of reaction is 2KI − > 2K + I2

A: Ans. The given reaction  2KI ------->> 2K + I2 This is redox type reaction in which  2I-…

Q: If Earth has an oxidizing environment, what would you expect to happen to M) if left to sit over…

A: Here, we have to find the substance that will be formed when Mg(s) is left to sit over time.

Q: Explain how addition of straw or glucose can help prevent N losses from soils and what key process…

A: The addition of straw or glucose can help prevent N losses from soils. The key process responsible…

Q: 6. a. Describe what happens when you blow exhaled carbon dioxide in the water. b. Write an equation…

A:

Q: What else is produced when sodium carbonate decomposes? Na2CO3 - Na20+

A: There are different type of chemical Reactions. These are - (1) Combination Reaction - When two or…

Q: 30 Sodium carbonate is a vital component of the glass manufacturing industry. (a) By referring to…

A: Sodium plays crucial role in marking glass.Sodium lime glass is made of 70 percent silica and 15…

Q: How would C1q2 have to change to make 12 million tons the optimum reduction?

A:

Q: Q2/Why are two vessels used in nitrogen generation?

A: Nitrogen gas is widely used in many companies in many different ways. There is a nitrogen generator…

Q: A chemist gathers 3924Kj from combusting 65g of ethane What is the deltaH of a 93% yield

A: Given the mass of ethane taken = 65 g  Experimental amount of heat released during combustion = 3924…

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.