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A: The density of water changes with changes in temperature and also with changes in salinity.
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A: Water is directly and intimately involved in all detail of animal physiology, but because it is so…
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A: Answer : in the formation of water, partial positive and partial negative charges are formed around…
Q: Which of the following statements is not true? a. Water is polar. b. Water stabilizes temperature.…
A: Importance of Water.
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A: An important property of water is that it is a polar molecule. The hydrogen atoms and the oxygen…
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A: Compounds can be classified as an organic and inorganic compound on the basis of the material from…
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Q: Select the statements that are TRUE regarding Water. SELECT ALL THAT APPLY A. Water is…
A: Those molecules that are vital for the growth and development of the living body are referred to as…
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A: Because of the unequal distribution of electrons among the atoms and the molecule's asymmetrical…
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A: Seawater is denser than both fresh water and pure water because the dissolved salts increase the…
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A: Introduction pH plays and important role in determining the concentration of H+ ions in the…
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A: X-rays X rays are the high frequency electromagnetic radiation and con not be seen. The frequency…
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A: Water is the most abundant compound that is present on Earth’s surface(71%). In nature, it can exist…
Q: Describe how buffers are important to living organisms.
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A: Introduction Hazardous waste is defined as waste that comprises organic or inorganic components or…
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A: several enzymatic reactions are occurring inside the cell to perform several metabolic and catabolic…
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A: Buffer is a solution of a weak acid and its conjugate base or weak base and its conjugate acid used…
Q: Which of the following is an Organic Compund? a. Salt b. Water c. Calcium d. Vitamin C
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A: Every solution has two different parts, Solute Solvent
Q: Compared to a solution of pH 9, a solution of pH 7 is Multiple Choice 2 times more acidic 20 times…
A: pH is a measure of acidity of a solution. A solution with high pH is more basic and a solution with…
Q: please select and explain
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A: A biological buffer is an organic material which acts as a H+ ions neutralizer. A biological buffer…
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A: The pH scale measures how acidic an object is. The scale has values ranging from zero (the most…
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A: Two primary sulphur containing amino acids are methionine and cysteine.
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A: The pH of a solution is used to predict the acidic and basic nature of the solution. It depends on…
Q: alcohol is added to water, the two solutions are ,forming a solution. If alcohol is added to a…
A: A mixture is a material that is made up of two or more different substances which are not chemically…
Q: Which of the following statements is not true?a. Water is polar.b. Water stabilizes temperature.c.…
A: Water is a colorless, tasteless, odorless chemical substance which consists of hydrogen and oxygen…
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A: Introduction The physical substance of a human being, made up of living cells and extracellular…
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A: Introduction: The balance between the acid and base is measured by pH indicator or pH scale.
Q: Acids Check any of the commonly encountered solutions below that are acidic. Check All That Apply…
A:
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Q: f a body of water is to support life, its dissolved oxygen should be _____ ppm or mg/L.
A: Water at lower temperature should have higher mg/L of dissolved oxygen and higher %DO while warmer ,…
Q: Which property of water contributes most to the ability of fish in lakes to survive very cold…
A: Water is universal solvent. A water molecule is made of single oxygen and two hydrogen atoms.
Q: Four of the five answers listed below are characteristics of water. Select the exception O 1. Water…
A: According to the water. A water can do all of the list except 4th option . All the options are…
Q: Why is water necessary for life?
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Q: When dissolved in water, a(n) ________ donates H+;a(n) ________ accepts H+.a. acid; base c. buffer;…
A: The correct answer of the given question is a. When any kind of substance is dissolved in water,…
Q: why is water considered a vital ingredient of life? please give 1 reference link of your answer too
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Q: Each value represents a different aqueous solution at 25 °C. Classify each solution as acidic,…
A: Note: Since you have posted a question with multiple subparts, we will solve the first three…
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A: pH basically means Hydrogen potential . It helps in determining how much of hydrogen ions are…
Q: Why is iron needed to be stored in human body? Give reference to concentrations bio-inorganic
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A: Nitrogenous wastes are produced in protein metabolism. These are the compounds through which excess…
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- Which of the following pairs of words are most clearly opposites? a. biodegradable, recalcitrant b. activated sludge, sewage c. carbon dioxide, methane d. SIV, HIVA group of pesticides are in use at present,these include some types of inorganic chemicals,organic chemicals and other substances.Explain Four major groups of pesticides that give advantages and disadvantages to our life.Which of the following substances are required by all organisms?a. organic nutrients b. inorganic nutrients c. growth factors d. oxygen gas
- . How does the law of tolerance affect where populations of organisms live? Organisms are not affected by the law of tolerance. Organisms tolerate the water conditions but cannot tolerate other abiotic factors. Organisms only live where they can tolerate the conditions. Organisms live where they can tolerate the other organisms.Write bulleted notes on solutions to the environmentExplain the processes of bioaccumulation and biomagnifi cation of toxic elements and the problems they cause.
- Which statement is correct regarding recycling. A. Compounds are never altered B. new element can be always created from another element C. Elements remains unaltered D. Only iron can be recycledIf high temperatures are most effective at killing microbes, what statement correctly explains why some food products are treated with temperatures below the boiling point of water? Extremely high temperatures would destroy the food's nutritional value. Extremely high temperatures would significantly lower the food's shelf life. Extremely high temperatures can destroy the food's desirable characteristics. Extremely high temperatures promote the growth of some microbes.Compare/Contrast elemental and ionic lead in chemical & physical properties and their effect on humans (health issues)? Need solution asap....
- Bio-chemically significant enzymes are derived from______.a) microbes b) macrobes c) insulin d) proteinFood is often irradiated with either x rays or electron beams to help prevent spoilage. A low dose of 5–75 kilorads (krad) helps to reduce and kill inactive parasites, a medium dose of 100– 400 krad kills microorganisms and pathogens such as salmonella, and a high dose of 2300–5700 krad sterilizes food so that it can be stored without refrigeration. (a) A dose of 175 krad kills spoilage microorganisms in fish. If x rays are used, what would be the dose in Gy, Sv, and rem, and how much energy would a 220 g portion of fish absorb? (See Table 43.3.) (b) Repeat part (a) if electrons of RBE 1.50 are used instead of x rays.The four most abundant elements needed by the human body are carbon, hydrogen, oxygen, and nitrogen. Because these are needed in large amounts to support our cells, these are referred to as a. isotopes. b. bulk elements. c. buffers. d. trace elements. e. essential elements.