9. What bonds are affected by: а. Нeat b. Organic solvents c. Metallic salts d. Alkaloidal reagents e. Strong acids
Q: A substance formed of crystals of equal numbers of cations and anions held together by ionic bonds…
A: Answer is b.) salt.
Q: An alcohol can react with an aldehyde to form a a. Hemiketal b. O b. Peptide bond C. Carboxylic acid…
A: Introduction: The correct choice is option d. Hemiacetal The correct choice is option c. Oxidation
Q: Which of the following are properties of water that make itimportant for living cells?(a) It is a…
A: All living organisms require water for survival. Water has many uses for organisms and exhibits many…
Q: The atomic number of sulfur is 16, Sulfur combines with hydrogen by covalent bonding to form a…
A: Every element has smallest unit of matter called atom that retain the properties of an element.…
Q: Compounds good at forming hydrogen bonds tend to O have low boiling points O be hydrophobic O have…
A: Introduction: Option 5 is correct.
Q: 5) Decide on the most likely mode of denaturation for each of the following compounds... a) hexane…
A: Denaturation is the process of the breaking the linkages or bonds that are formed in the compounds…
Q: PCopper oxide (Cu2O) was added to detect the presence of Peptide bonds .a O Nucleic acids .b O…
A: The fehlings reagent solution is used to detect the presence of aldehydes and due to the reducing…
Q: A homogeneous mixture consists of 12% ethanol, 28% methanol and 60% water. Which of these is the…
A: Homogeneous mixture has the same proportions of its components throughout any given sample and is…
Q: Which of the following alters proteins and membranes? a. Alcohols b. Iodine c. All other choices…
A: Several factors influence antimicrobial activity: The population size of microbes The duration of…
Q: A covalent bond forms whena. electrons are present in a valence shell.b. a valence electron is…
A: Answer is c.) a pair of valence electrons is sharef between two atoms.
Q: The most important peculiarity of water when compared to other solvents is that water has إختر أحد…
A: Water is a polar molecule and it is called the universal solvent
Q: ОН O= c–CH,OH НО H OH
A: Vitamin C is also known as ascorbic acid. Vitamin C is a water-soluble compound. Vitamin C helps to…
Q: What is the major consequence of the H- bonding interactions among water molecules? A. Polarity of…
A: Option (e). All of these is the correct answer. Reason: There are many effects of hydrogen bonding…
Q: Buffers a. can be acids, not bases. b. keep the pH constant. c. are monomers of a polymer. d. are…
A: Buffers are solutions that are able to neutralize small amounts of acid or base that are added to…
Q: 1. Knowing that these 2 molecules are always floating in the air, hypothesize why your distilled…
A: Carbon and nitrogen are always floating in air. The carbon forms CO2 and nitrogen forms NO2 in air.…
Q: Covalent bonds involve_____ a)electrostatic attraction b)sharing electrons c)valence…
A: Bond polarity is the separation of electric charge across a bond, which makes the molecule to have…
Q: . A cation is a(n)a. uncharged atom.b. positively charged atom.c. negatively charged atom.d. atom…
A: A molecule is considered to be composed of two or more atoms having the same elements, which are…
Q: This occurs when the cations and anions are attracted to the positive and negative ends of water…
A: The type of interaction where two molecules of opposite charge with each other i.e. a cation…
Q: 10. Identify the following as either chemical change (C) or physical change (P) baking a pie melting…
A: A chemical change is a process during which one or more ingredient (reactant) chemically reacts to…
Q: 7. The chemical you are testing has a concentration of H* as 10³ M (must watch the video). A) What…
A: pH is a measure of the concentration of hydrogen ions in a given solution. Higher the concentration…
Q: A hydrogen bond can form between adjacent to each other. two oxygen atoms O negative charges O a…
A: According to our guidelines we can only answer the first question and rest of the question can be…
Q: 9. Draw the Electron Structure for Rb & O 10. Draw the Electron Structure for Sr & F Formula Unit:…
A:
Q: Hydrogen bonds are a type of _____________ bond or interaction. a. ionic b. dipole–dipole c.…
A: Hydrogen bonds are the bonds that are formed by the electrostatic forces of attraction between a…
Q: An organic molecule containing several hydroxyl (-OH) groups is linkely: A hydrophobic and dissolves…
A: - An organic molecule containing several hydroxyl groups is hydrophilic in nature, as they generally…
Q: 5, describe the unique properties of water.
A: Water's unique properties: Water can dissolve a wide range of chemicals, which is why it is such an…
Q: 13. ich of the following bonds share electrons? A. Ionic bonds B Covalent bonds C. All of the above…
A: Different biomolecules are formed due to the formation of chemical bonds. A chemical bond is an…
Q: II. Arrange the following compounds in order of increasing: A. boiling point B. acidity C.…
A:
Q: Which of the following description is correct? * A. A solution consist of a solvent dissolve in the…
A: Disclaimer: Since you have asked multiple question, we will solve the first question for you. If you…
Q: 9. Which of the following changes to a chemical reaction will make it go faster? Select all that…
A: Biochemical reaction depends on many parameter. Many aspects increase or decrease the biochemical…
Q: 4 Distinguish between ionic and covalent bonding.
A: form We have to differentiate between ionic and covalent bond
Q: Which of the following would be most effective as a buffer? A. pure water B. a mixture of…
A: Buffer is aqueous solution which is used to maintain an optimum pH and this can be acidic buffer or…
Q: 22) A mixture of NaCl and starch is placed in a dialyzing bag and immersed in distilled water. Which…
A: Dialysis is considered as the process, during which using filters blood is purified. This helps to…
Q: D. False How much of ethanol you need to prepare 25% (v/v) ethanol solution Select one: O a. 75 ml…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: (a) A homogeneous mixture which contains water as a solvent is called (b) Ni(CIO4)2-6H2O is hydrated…
A: Mixture is the physical combination of two or more substances, where the identities are retained and…
Q: ionic bonds involve_____ a)electrostatic attraction b)sharing electrons c)valence configuration
A: An attraction between molecules or atoms is termed as atomic or molecular bond. They are of many…
Q: 4. Hydrogen bonding occurs between: O Water and water. O Water and polar molecule. O Between two…
A: Hydrogen bonding is an electrostatic force between an electronegative atom containing a lone pair of…
Q: 3. You do a paper chromatography experiment using the same conditions as outlined in the simulation.…
A: Chromatography is a technique of separation of different component present in a given sample.
Q: 5. (a) How many covalent bonds does each of the following type of atom typically form? (i) H (iii) C…
A: INTRODUCTION Covalent bond Whenever there is an equal share of electrons between the atoms, covalent…
Q: A chemical with sporicidal properties isa. phenol b. alcohol c. quaternary ammonium compound d.…
A: The organic substances having –CHO functional group which is a strong reducing group on the end…
Q: 7. Which elements are found in simple carbohydrates? A) carbon, hydrogen and oxygen B) carbon,…
A: Carbohydrates are biomolecules that are present in most of the food we intake. It is present in the…
Q: Ammonia gas would be classified as (1) a compound (2) a mixture (3) an element (4) an atom
A: AMMONIA GAS IS CLASSIFIED AS COMPOUND.
Q: Of the bonding forces between atoms and molecules, which are strongest?a. hydrogen bondsb. bonds…
A: Polar Molecules are molecules that contain positive and negative charges. Charged molecules also…
Q: 1. Knowing that these 2 molecules are always floating in the air, hypothesize why your distilled…
A: Distilled water is pure water and it has a pH 7 but when it's pH is checked it do not show neutral…
Q: Bonds between like/similar atoms (e.g. as in H2) are always: a. polar covalent bonds b. ionic bonds…
A: The correct option is d no polar covalent bond
Q: 1) breaking down a molecule by adding a water molecule is ? A. dehydration reaction. B. hydrolysis…
A: Dehydration reaction : is the chemical reaction in which a water molecule is removed from the…
Q: 8. The atomic number of Nitrogen is 7 and its atomic weight (mass) is 14. How many covalent bonds…
A: A chemical bond or molecular bond in which pairs of electrons are shared between two atoms is…
Q: Which of the following best describes the process of Dissociation? A. the breaking of covalent…
A: Ionic bond is produced by the complete transfer of electrons from one atom to another atom.…
Q: The partial negative charge at one end of a water molecule is attracted to the partial positive…
A: A chemical compound is formed when two or more different atoms chemically bond together. Carbon…
Q: 1. The partial negative charge at one end of a water molecule is attracted to the partial positive…
A: Hydrogen bonds is a non-covalent interaction in which are formed between an electronegative atom and…
Q: Which of the following bonds and properties are correctly matched? (a) ionic bonds; are strong only…
A: Answer : B) hydrogen bonds; are responsible for bonding oxygen and hydrogen to form a single water…
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- 3. What are the effects of the following solvents when mixed with lipids? What type of hydrolysis is present when mixed withthose solvents? Explaina. waterb. CCl 4c. Etherd. CHCl1. What are the effects CCl 4 solvents when mixed with lipids? 2. Explain enzyme hydrolysis.2. Four unidentified solutions of equal concentration (0.1 mol/L) were prepared by chemistry students who were investigating the properties of acids and bases. Solution Red litmus Blue litmus pH Conductivit Blue No change 13.2 Very high 2 No change Red 3.5 Weak 3 No change Red 1.8 Very high 4 Blue No change 10.7 Weak Identify the acids and the bases in the list above. b. Classify the acids and the bases as being weak or strong with supporting information. Suggest another test that could be used to determine the relative strengths of the acids.
- 25.Which intermolecular force is responsible for the high surface tension of water? See figure for example. nutounte yisbnos tzhnod nep lenolans waduE4 Saoitesinsgmo nistong lo laval doiw in bnu Aw is a. Covalent bonding b. Hydrogen bonding c. Ionic bonding d. Water bonding e. Polar bonding A 24 aninisinco sluelom naawed m yillsinsg s bne 59 ai bnod nsnonbyrd eri abnod 1epone to mots begner Visy between the concentration of hydrogen ions (H*) and pH? See figureWhich of the following is MOST soluble in polar solvents? A H₂C ОН В с D ОВ O О О O A H3C. HO HC CH3 CH3 ОН COOH CH3 CH3 CH309. In nursing Research 5 example where the knowledge of tha exact properties of water can be used in the nursing profession.
- 4. A 100.0-mL sample of brackish water was made ammoniacal, and the sulfide it contained was titrated with 16.47 mL of 0.02310 M AgNO3. The analytical reaction is Calculate the concentration of H2S in the water in parts per million, cppm.A chemical with sporicidal properties isa. phenol b. alcohol c. quaternary ammonium compound d. glutaraldehydeAn ________ can help keep the pH of a solution stable. a. covalent bond c. buffer b. hydrogen bond d. free radical
