How to reduce/control chromium pollution?

Q: What forms of mercury are most toxic to organisms?

A: Mercury is a toxic element present naturally and it is an introduced contaminant in the environment.…

Q: What are the similarities between magnetron and klystron

A: Magnetron It is a high-powered vacuum tube. It is a self-excited microwave oscillator. Klystron It…

Q: At high concentration which oxides are poisonous?

A: The major contributors of the air pollution are nitrogen oxides. They have role in the formation of…

Q: How can you measure the element carbon (C) content using XRF?

A: XRF is a non-destructive analytical technique used to determine the elemental composition of…

Q: A 10.00 mg sample of technetium-93 (92.91024898 u) is used to heat 125.4 g o

A:

Q: Which element is the world's lightest metal and increasingly a vital component of batteries used in…

A: Any metals heaviness and lightness depends upon the density of that metal.  Density is defined as…

Q: Why oil gets hot faster than the water?

A: Lipids are macromolecules that help in the structure and function of the living body. They are not…

Q: One reason given by Peruvian officials for not chlorinating their water supply is that chlorine can…

A: Chlorination of water is one of the widely accepted methods used worldwide to eliminate the possible…

Q: How many kilocalories are needed to vaporize 5.8 mol of Br2?

A: Bromine is a dark reddish-brown fuming liquid with a pungent odor. Denser than water and soluble in…

Q: Why is carbon monoxide (CO) so dangerous?

A: Carbon monoxide is a colourless, odourless, tasteless, poisonous gas. It is a flammable gas. It is…

Q: Which element is the world's lightest metal and increasingly a vital component of batteries used in…

A: Metals are solid opaque  elements that has good conductivity of heat and electricity. Lightness of…

Q: Which of the following is not an equivalent to ppm? a.mg/L b.ug/g c.g/ton d.uL/mL x 106

A: The abbreviation of ppm is ‘parts per million'. It is also expressed as milligrams per litre (mg/L).…

Q: What happens when ionizing radiation strikes an atom in a chemical compound?

A: Ionising radiation is radiation, travelling as a particle or electromagnetic wave, that carries…

Q: Which of the following forms of electromagnetic radiation has the highest energy?   Radio waves…

A: The energy states of electromagnetic radiation is directly proportional to the wavelength of the…

Q: What is 10% law?

A: 10% energy transfer law in the food chain is put forth by Lindeman. A pyramid of energy depicts the…

Q: How is mercury detoxified by bacteria?

A: The mercury resistance due to the reduction of mercuric to the elemental mercury is distributed…

Q: Which of these substances are considered hazardous waste? A. Corrosive materials B. Flammable…

A: Introduction Hazardous waste is defined as waste that comprises organic or inorganic components or…

Q: Why is 350°C water emitted from a black smoker not boiling?

A: Black smokers are one of the types of hydrothermal vents that are found in deep sea beds and appear…

Q: How to reduce/control the cobalt pollution??

A: Solid wastes from municipalities and industries are often dumped temporarily over land. During…

Q: What is radioactivity? What does it mean for an atom to beradioactive?

A: Atoms are the smallest particle of material. Atoms are composed of subatomic particles such as…

Q: 11.74 The table below lists the density of O2 at various temperatures and at 1 atm. The normal…

A: Oxygen molecule (O2) Oxygen molecule (O2) is a very essential molecule of nature, it make life…

Q: A 75.0 g piece of Ag metal is heated to 80.0 C and dropped into 50.0 g of water at 23.2 ° C. The…

A: To find: Specific heat of silver

Q: What are the toxic responses of microwave radiation?

A: According to the question, we will discuss the toxic responses of microwave responses. So, let us…

Q: What happens if we combine jello in a water solution with electricity?

A: There are three basic types of mixtures, solution, suspension, and colloids. A solution is a…

Q: Explain why cadmium and mercury are toxic to most organisms.

A: Heavy metal refers to any element in the periodic table that is metallic in nature having relatively…

Q: What is the Carbon content of Cast Irons? O a) Less than 2% O b) More than 2% O Less than 14% O d)…

A: Cast iron An alloy of iron that contains 2 to 4 percent carbon, along with varying amount of silicon…

Q: The wavelength for cobalt (II) chloride is set to 549 nm. Why is this wavelength being used?

A: In uv visible spectroscopy , we measure the absorption of radiation by the sample at a particular…

Q: What is not valid for aerosols?

A: Aerosols are basically a suspension that is composed of fine solid particles or liquid droplets in…

Q: What are the relative dangers of wrong and unapproved mixtures and combinations of alcoholic…

A: Long term consumption of alcohol leads to chronic disease. It also leads to increase blood pressure,…

Q: How human radiation exposure arises ?

A: Radiation is the emission or transmission of energy in the form of waves through space and travel…

Q: Why does PET use different isotopes than that of nuclear medicine exams with gamma cameras? What…

A: Nuclear medicine is a branch of medicine that deals with the use of radioactive substances in…

Q: How do we use tinctures of iodine and other halogens?

A: Disinfectants are chemical agents applied to non-living objects to destroy bacteria, viruses, fungi,…

Q: Write shortly about the instrumentation of ATR spectroscopy.

A: The tool of spectroscopy is used to study the structures of atoms and molecules. The large number of…

Q: How does HPLC differ from ionexchange chromatography?

A: In chromatography, mixture of compounds are separated into individual components based on their…

Q: The half-life of mercury-197 is 64.1 hours. If a patient undergoing a kidney scan is given 5.0 ng of…

A: The half life (t1/2) is defined as that period of time which is needed for one half of a given…

Q: What is the product of the b emission of gold-198?

A: Beta decay is a type of radioactive decay in which a beta particle is emitted from an atomic…

Q: How to reduce/control selenium pollution?

A: Selenium is a trace element that has emerged as a contaminant of concern in water bodies. The…

Q: What are the toxic responses of the heavy metal, nickel?

A: Heavy metal poisoning is when heavy metals accumulate in the body in high amounts that can be toxic.…

Q: How does the results of the pH meter and the pH paper compare with each other?

A: pH is the concentration of hydrogen ions present in the given solution. The determination of the pH…

Q: Why do doctors not accept HMO?

A: HMO is an abbreviation for Health Maintenance Organization. HMOs provide insurance coverage for…

Q: How do you think fluorocitrate can be formed?

A: Fluorocitrate is the fluorinated carboxylate ion that is derived from citric acid by substitution of…

Q: How is Kw defined, and what is its numerical value at 25 °C (298 K)?

A: As we know that the pure water is a considered as weak electrolyte that is  H2O ⇔H++ OH-

Q: How much heat would be required to convert 7.47 mol of a pure substance from a liquid at 40.0°C to a…

A: The heat is a form of energy. The heat of vaporization is defined as the amount of heat needed to…

Q: Discuss chlorine and iodine and their uses.

A: Chlorine and Iodine both are chemical elements. Chlorine has atomic number 17 and belongs to the…

Q: The amount of heat in kJ required to convert 0.7 gal of liquid water to steam equal… ?

A: 0.7 gallon of water  1 gallon = 3.7854 kg water 0.7 gallon = 2.65 kg water

Q: How has the National Appliance Energy Conservation Act of 1987 helped reduce acid deposition?

A: -It set standards for household appliances, for an example washing machine and dryer. -It also asked…

Violence

Violence is defined as a physical act that causes or is intended to cause harm. Violence can cause physical, emotional, or both types of harm. Violence is defined by the World Health Organization as the intended use of physical force and power that causes threat or harm against oneself, another person, or against a community or group, and has the potential to cause damage, death, mental distress, maldevelopment, or poverty.