Q: two atms of an element have the same number of protons electrons plus neutrons protons plus…
A: Atoms are the smallest constituent unit of ordinary matter that has the properties of a chemical…
Q: How many molecules of water will also be produced from the formation of this tripeptide? + ___ H2O
A: Tripeptide is a simple stretch of three amino acids joined by peptide bond. Tri means three and…
Q: "Most biological reactions occur between pH 6.5 and pH 8.0."
A:
Q: How many valence electrons are in Oxygen
A: Valency is defined as the combining capacity of the element. It is determined by the number 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: What type of chemical reactions are the below 2 reactions? Decomposition or Synthesis?…
A: Decomposition reaction:- Breakdown of larger substance/ molecule into smaller units or parts. Eg:-…
Q: Which of the following vitamin contains Cobalt?A. Vitamin D B. Vitamin K C. Vitamin C D. Vitamin B12
A: The vitamins are the organic molecules that are required in small quantities to sustain life. It is…
Q: What is the difference between volatile and nonvolatile organic compounds? What function do these…
A: Volatile organic molecules are chemicals that change from solid to liquid to vapor. Nonvolatile…
Q: Which of these atoms has an oxidation number of 2-? O Sulfur O Chlorine O Aluminum O Neon O Silicon…
A: Oxidation State/number And Valency Valency is defined as the number of electrons present in…
Q: compounds are the products? Carb
A: Carbon dioxide can be defined as a chemical compound that is composed of one carbon and two oxygen…
Q: The reactions in which single carbon atoms aretransferred from one molecule to another are…
A: Carbocation rearrangements are defined as the movement of a carbocation from an unstable state to a…
Q: A chemical species with an unpaired electron is called a_____________.
A: A molecule with one or more unpaired electron in its outer shell is called a free radical.
Q: When lead acts as a poison, it can do so either by replacing another ion (such as zinc) in the…
A:
Q: in which of the following alternatives is the greatest amount of energy released from the…
A: Hydrocarbons are organic molecules that are essentially made up of carbon and hydrogen atoms, where…
Q: Which elements in each pair is more metallic? Silicon or aluminum
A: Introduction: A pure substance that can't be separated by compound methods, comprising of molecules…
Q: Amino acids form peptide bonds through dehydration. Explain the role of water in this process by…
A: Aminoacid can be polymerised to form the chains . This process can be represented as the…
Q: What is the smallest unit of an element that retains the properties of that element
A: An element is a pure product in chemistry that can not be broken down by chemical means, consisting…
Q: What interactions occur between the following molecules and ions? a. water and ammonia b. lactate…
A: When another polar molecule such as ammonia is added to water, it dissolves because of the…
Q: Which of the following is not a sterol? a. sex hormones b. vitamin D c. lecithin d. cholesterol
A: Sterol is a group which is helpful for the cell development and production of energy in human…
Q: The inclusion of metal ions in protein composition Inactivates enzymes destroys prothis destroys…
A: A chemical reaction is an equation which represents interaction between substrates to form products.
Q: Which of the following happens in all chemical reactions (involving molecules) in all living…
A: Energy can be in any forms. Energy has the ability to work. It can be converted into any forms.
Q: What coefficient must be placed in the following blanks so that all atoms are accounted for in the…
A: As per the law of conservation of mass, mass can neither be created nor destroyed. This also applies…
Q: A dehydration reaction will create (large or smaller) molecules by removing a molecule of (water or…
A: A molecule is a collection of atoms linked together by various types of bonds. A macromolecule is…
Q: In certain amino acids, which one of the following elements is found in addition to carbon ,…
A: Two primary sulphur containing amino acids are methionine and cysteine.
Q: Which of the following best describes the molecule below? CH OH H. CHOH H H. OH H OH CHOH H OH OH
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Q: It is simple to grind up a plant and then extract and measure all of the chemical elements present,…
A: Plant extraction is defined as a process or technique that will aim to extract individual or…
Q: In H2O how many hydrogen (h) atoms are present
A: Answer- 2 atoms. In H2O 2 hydrogen atoms are present.
Q: Chlorophyll is similar in structure to heme in red blood cells but does not have an iron atom. What…
A: Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesis carbohydrates…
Q: The phrase that denotes a simple substitution reaction between the following expressions 1- The…
A: Water is used as a solvent in laboratories, biochemical systems and industries. The water molecule…
Q: What element is an essential component in organic compounds
A: Organic compounds are those compounds which were first identified in living systems. These compounds…
Q: Two or more chemical compounds that have the same formula, but have different structures are known…
A: Any substance made up of similar molecules made up of atoms from two or more chemical elements is…
Q: You need to compound 1 L of a 4% solution. The pharmacy has a solution of 12% and a 2% solution in…
A: The Alligation method or Tic-Tac-Toe is a method of calculation when there are different prices or…
Q: Why do you think compounds containing the heavy metal lead are poisonous?
A: Heavy metals are chemical elements that have high density and very toxic or poisonous even at their…
Q: In the following chemical reaction, which compounds are the products? Carbon dioxide + Water → Sugar…
A: For any reaction to get complete substrate is required. The resultant is called as product.
Q: A catalyst does not alter the difference in the energy contents of the reactants and products. True…
A: Catalysts are substances such as solids, liquids, and gases that speed up chemical processes and are…
Q: The reactions in which single-carbon atoms are transferred from one molecule to another are referred…
A: Homeostasis is the ability to maintain a constant internal environment in response to different…
Q: What types of covalent bonds can be found between carbon atoms in organic compounds
A: Chemical entities that are made up of more than one type of atoms are called compounds. Examples of…
Q: Urea dissolves very readily in water, but thesolution becomes very cold as the urea dissolves. How…
A: As urea dissolves in water the solution gets colder which shows that the system is absorbing heat.
Q: Why does the carbonyl group in aspirin cause stomach bleeding? Talk about the PH & PKa
A: Aspirin is prepared by chemical synthesis from salicylic acid, through acetylation with acetic…
Q: This atom (group) is removed and converted to an ammonium ion, which ultimately is excreted from the…
A: The organs involved in the human excretory system make it easier to remove nitrogenous waste…
Q: Amino acids contain the following elements EXCEPT A. oxygen B. potassium C. carbohydrate D.…
A: Amino acids are molecules that combine to form proteins. These are the building blocks of life.
Q: This compound is directly involved in:
A: The given structure is of NADPH. NADPH is reduced form of NADP+. The major source of NADPH in…
Q: The incorporation of inorganic nitrogen into organic molecules is called _____________
A: The higher plants absorb the nitrogen which results in the formation of organic molecules further…
Q: Referring to PHC elements, why is PHC not relevant today
A: *Primary health care system* PHC is a whole-of-society approach to health that aims to ensure the…
Q: Vitamin B12, also known as cobalamin, has the following chemical formula: C63H88CON14014P What makes…
A: Vitamin is an organic molecule that is essential micronutrient which an organism needs in small…
Q: Which one of the following substances would you expect to be most soluble in water? A) Butanol B)…
A: solubility in water depends on various factors one of which is the hydrogen bonding formed by the…
The enzyme Nitrite reductase has which of the elements as its constituent ?
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- للتدة Consider the following compounds. O 2 3 Use the numbers shown to answer the following questions. If none of the structures is applicable enter the word none. An anhydride is represented by the structure numbered O O HC 1 CH3 HC 3 CH3Iodine values change during oil hydrogenation. Why these values change during hydrogenation and why would one wish to hydrogenate edible oils?What acid is the most widely produced acid in the United States? What is the acid found in your stomach? Name a fruit that has malic acid. Why don't we like to eat bases? What is the exact difference between an acid and its conjugate base?
- sodium nitrite (NaNO2) is used by emergency medical personnel as an antidote for cyanide poisoning (for this purpose, it must be administered immediately). Based on the discussion of cyanide poisoning, suggest a mechanism for the life-saving effect of sodium nitrite.Trans-oleic acid (18:1,D9) has a melting temperature of (44.5C) and cis-oleic acid (18:1,D9) has a melting point of (13.4C). Briefly explain the difference in melting points between the two.Which transition metal atom is present in each of the following biologically important molecules: (a) hemoglobin, (b) chlorophylls.