Carbon dioxide in the atmosphere traps heat from the sun and makes life on Earth possible. Why then should we be concerned about adding carbon dioxide to the atmosphere if it is a natural occurrence and beneficial to life on Earth?

Q: Magnesium ions are removed in water treatment by the addition of slaked lime, Ca1OH22. Write a…

A: Presence of magnesium ions in water is responsible for the hardness of water. So, during water…

Q: Calculate the maximum wavelength of radiation that could have sufficient energy to effect the…

A: To find out the maximum wavelength of the radiation which will have sufficient energy to dissociate…

Q: Write the chemical equation for the removal of lead and copper from water using phosphates

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Q: explain why the manufacture of nitric acid from ammonia carried out at 900 °C

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Q: How would the increase in O3 in the late spring Antarctic stratosphere affect the concentration of…

A: The first step of the mechanism is affected by a change in ozone concentration, but there's no…

Q: Why ozone behaves as oxidising agent for metals and non metals?

A: Ozone is an allotropic form of oxygen.  The chemical formula of ozone is O3.Ozone acts as a powerful…

Q: What properties of CFCs make them ideal for various commercialapplications but also make them a…

A: INTRODUCTION: What actually the CFCs is?? The full form of CFCs is chlorofluorocarbon, which contain…

Q: How can this effect be achieved through CO2 or dry ice? What does LPG stand for? How can a gas be…

A: The process of liquefying a gas, which transforms it from a gas to a liquid, is known as the…

Q: List the uses of Nitrogen?

A: Nitrogen is a colorless and odorless gas. It is found in amino acids that make up proteins, in…

Q: Write the balanced equation for the reaction of nitrogen with hydrogen to form ammonia

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Q: 27. Carbon dioxide in the atmosphere traps heat from the sun and makes life on Earth possible. Why…

A: In a sufficient amount of atmospheric CO2 maintain the temperature of earth and make earth…

Q: Give

A: 2NH4​Cl + Ca(OH)2 ​→ CaCl2​ + 2H2​O+2NH3​ Ca3P2 + 6H2O → 3Ca(OH)2 + 2PH3   FeS + 2 HCl → FeCl2 + H2S…

Q: Identify and analyze the way fossil fuel combustion has changed the composition of Earth's…

A: The burning of fossil fuels refers to the burning of oil, natural gas, and coal to generate energy.…

Q: Why does carbon dioxidedisplace oxygen?

A: The given question is based on concept of density. The definition of denser is something that is…

Q: CaO(s) + CO2 (g) → CaCO3 (s) What mass of CO2 could be absorbed by 1.95 g of CaO? Mass = g CO2 What…

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Q: What are the major health concerns associated with exposure to nitrogen dioxide?

A: Nitrogen dioxide should be handled carefully. It is a dark brown to yellowish liquid. It has a…

Q: 1. You know that the air around you is full of nitrogen, yet your garden regularly shows signs that…

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Q: Write chemical equations for the following processes: (1) Reduction of VO2 + to produce VO2+ (2)…

A: Chemical equations: (1). Reduction of VO2 + to produce VO2+:

Q: describe the role that NO2 plays in the production of tropospheric (ground-level) ozone, and   the…

A: Ozone is a gas with the formula O3. Ozone can be found on troposphere and stratosphere.…

Q: What additional reactions do these NOx and SOx compounds undergo in the atmosphere that lead to the…

A: NOx indicates the oxides of nitrogen. The major oxides of nitrogen are nitric oxide (NO) and…

Q: Using appropriate chemical reactions for illustration, show how calcium present as the dissolved…

A: Bicarbonate, chloride salts of calcium causes hardness of water. Out of both, bicarbonate causes…

Q: How many grams of oxygen are needed to react with 160 gg of hydrazine?

A: How many grams of oxygen are needed to react with 160 g of hydrazine?

Q: Why is carbon monoxide a dangerous air pollutant? How does it affect human health at low levels and…

A: The most common symptoms of CO poisoning are headache, dizziness, weakness, upset stomach, vomiting,…

Q: Although the earth was formed from the same interstellar material as the sun, there is little…

A: The atmosphere of earth consists of mostly nitrogen and oxygen along with some amount of noble…

Q: Explain why the structure of charcoal allows carbon to act as a good filter while the diamond…

A: The reason behind the fact that C as good filter in form of charcoal but not as filter in diamond is…

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: Write chemical equations for the following processes: Reduction of VO2+ to produce VO2+…

A: 1) Since the reduction reaction means gain of electrons And in VO2+ , V is in 5+ state and in VO2+ ,…

Q: Roles of carbon IV oxide in soft drinks

A: Carbon (IV) oxide is a chemical compound with the formula CO2. It is commonly known as carbon…

Q: Determine the mass, in kg, of HgO that must decompose to form 70.4 LO2 gas at STP. 2H9O(s) 2Hg() +…

A: The reaction given is, => 2 HgO (s) → 2 Hg (l) + O2 (g)  Given: Volume of O2 produced at STP =…

Q: How does CaO or CaCO2 remove SO2 from flue gases?

A: Since SO2 is an acidic gas, it has to be removed from the flue gas.

Q: Write equations showing the reactions by which atmospheric carbon monoxide is oxidized to carbon…

A: Atmospheric gases easily oxidises by the presence of abundant O2 or O3. CO is produced from the…

Q: What effect does an increase in the atmospheric carbon dioxide levels (and therefore rising…

A: Carbon dioxide is a green house gas.  The increased amount of atmospheric carbon dioxide level…

Q: As a concerned individual, this calls for an act to mitigate the problem on ocean acidification…

A: ✓Ocean acidification is mainly caused by carbon dioxide gas in the atmosphere dissolving into the…

Q: What is the typical concentration of oxygen in dry air?

A: Mixture of gases namely oxygen, nitrogen, carbon dioxide and traces of some other gases are present…

Q: what should be done to mitigate the impacts of ocean acidification on the Great Barrier Reef

A: Mitigation the impact of ocean acidification on the great barrier reef

Q: Why should a magnesium ribbon be cleaned before burning in air?

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Q: >Magnesium ions are removed in water treatment by the addition of slaked lime, Ca(OH)2. Write a…

A: Presence of magnesium ions in water is responsible for the hardness of water. So, during water…

Q: What type of reaction is indicated by the production of HBr? Two of the reactions above produce HBr.…

A: We have to discuss a reaction in which product formed is HBr.

Q: Out of white phosphorus and red phosphorus, which one is more reactive and why?

A: Allotropes are usually different structural modification of an element. White phosphorus and red…

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.