which of the following solvents would NOT dissolve lipids and why? a. Hot ethanol - because this solvent is polar b. Chloroform - because this solvent is polar c. Water - because this solvent is polar d. hexane - because this solvent is non-polar

Q: A substance formed of crystals of equal numbers of cations and anions held together by ionic bonds…

A: Answer is b.)  salt.

Q: Why is water considered the universal solvent? A:Water molecules are weakly bonded to other water…

A: Biomolecules are those organic compounds that are made up of carbon and hydrogen with some other…

Q: Compounds having an affi nity for water are said to bea. cohesive. c. hydrophobic.b. hydrophilic. d.…

A: b) hydrophilic

Q: Phospholipids are important components of __________. a. the plasma membrane of cells b. the ring…

A: Plasma membrane is a lipid bilayer. Alcohol, fatty acids, phosphates, and an alcohol attached to a…

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: B-pt and M-pt of various organic compounds depends on intermolecular forces of attraction which…

A: Organic molecules are primarily made up of carbon, hydrogen, nitrogen, and oxygen atoms. The organic…

Q: Which of the following statements is true? a. Acids and bases cannot mix together. b. Acids and…

A: pH scale indicates the hydrogen ion concentration of that solution. By given pH we can say if that…

Q: Match the concept in column A to the concept in column B. Write the letter of the correct answer on…

A: Introduction "A cell is the smallest, most fundamental unit of life, responsible for all of life's…

Q: If a protein were placed in a nonpolar solvent, would it have the same structure as the same protein…

A: Protein is a molecule, which is highly complex and is present in all living things. All proteins…

Q: What is the reaction of fats with strong bases producing salts of the fatty acids known as metallic…

A: The triacylglycerols undergo stepwise enzymatic hydrolysis and liberate free fatty acids and…

Q: Which of the following is not a function of lipids? A. They catalyze reactions and reduces…

A: Lipids are defined as a group of organic compounds; which are generally insoluble in water and…

Q: Which is NOT an appropriate factor in choosing solvents in a mixed solvent system? a. The two…

A: The correct answer for non appropriate factor in choosing solvents in a mixed solvent system will…

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…

Q: The ability of non-polar substances like fat molecules to clump together in water thereby allowing…

A: Fats are non-polar molecules and generally insoluble in water. Non-polar molecules can not make…

Q: What type of macromolecule is an enzyme? A) Proteins B) Saturated fats C) Phospholipids D) Lipids

A: A macromolecule is defined as a molecule containing a large number of atoms. Macromolecules are…

Q: Biomolecules are polymers that are formed when ______________are joined by a…

A: Biomolecules: Also called as biological molecules any of numerous substances which are produced by…

Q: Organic compounds:   A) Aren't generally soluble in water   B) Have lower boing points than…

A: organic compounds where carbon is covalently linked to another molecule through a covalent bond .

Q: When hydrogen is a part of a ________, it has a slight positive charge.   a. Ionic bond   b. polar…

A: Hydrogen bears a slight positive charge and atom with which it is attached bears slight negative…

Q: Which of the following is true of the molecule pictured below? A) It will spontaneously form into…

A: Triglycerides are the molecules composed of long chains of three fatty acids attached to a Glycerol…

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: The hydrolysis of proteins yields    A. esters    B. organic acids    C. amino acids    D.…

A: Proteins are polymers of twenty naturally occurring amino acids amino. The amino acid residues in…

Q: Which of the following is a hydrophobic material?(A) paper (B) table salt(C) wax (D) sugar

A: Hydrophobic means the fear of water, where as hydrophilic is the liking of the water. The molecules…

Q: “Navy coffee” is where the coffee is brewed strong and a bit of salt is added. What is special about…

A: "Navy coffee” is where the coffee is brewed strong and a bit of salt is added. What is special about…

Q: The atomic number gives thea. number of neutrons in the nucleus.b. number of protons in the…

A: An atom is defined as the smallest particle of an element. They constitute of neutrons, protons and…

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: Organic molecules consist mainly of atoms.a. carbon c. carbon and hydrogenb. carbon and oxygen d.…

A: In chemistry, and biochemistry the compounds present are converted into two namely organic and…

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: Which of the following molecules is an inorganic molecule? a) cholesterol  b) sucrose  c)…

A: Biomolecules are organic molecules made up of mainly carbon and hydrogen but there are other…

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: Something with a pH of 5 would be A) acidic B) alkaline C) neutral D) basic

A: Acidic and basic are two extremes that describe a chemical property chemicals. Mixing acids and…

Q: Water molecules have one oxygen atom that is more electronegative than the two hydrogen atoms bound…

A: In biological molecules, two main types of bonds are found that is covalent and non-covalent bonds.…

Q: The hydrogen ion contained in hydrochloric acid comes from ... a) ... pyruvic acid. b) ... carbon…

A: Hydrochloric acid (HCl) is one of the main components of gastric juice produced by the oxyntic or…

Q: Explain why vegetable oil and water don't dissolve in one another.

A: Lipids are non-polar biomolecules composed of fatty acids and an alcohol. Some of the lipids have…

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: Which type of bond represents a weak chemical bond? a. hydrogen bond b. atomic bond c. covalent bond…

A: A chemical bond is an enduring fascination between particles, particles or atoms that empowers the…

Q: Which of the following substances will dissolve in water

A: Water is known as a universal solvent as there are many substances that can dissolve easily in…

Q: Using the image below answer the following question. What does "3" indicate? 2 - CH2 – CH2 – CH2 –…

A: answer : The type of bond which is present in the third number is the hydrogen bond.

Q: What type of reaction will break down large polymers with the addition of water? A.) exchange…

A: A chemical reaction is a process in which reactants are converted to one or more different products.

Q: Describe the unique features of the following molecules, why are the critical to life? a.…

A: All these are the macromolecules or biomolecules which are needed for the proper functioning of our…

Q: Substances those are partially dissolved in ... water are commonly known as اختراحد الخيارات a.…

A: Water solubility is a measure of the amount of chemical substance that can dissolve in water at a…

Q: You have two beakers. One contains pure water, the other contains pure methanol (wood alcohol). The…

A: The solubility of a salt in water depends on lattice energy and hydration energy. When lattice…

Q: Use the following diagram to answer the question: Which of the molecules have hydrogen bonding? (B…

A: In the given images, we are shown different biomolecules. There are many biomolecules present in the…

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: the structure of a soap molecule, use the concept of intermolecular forces to explain why we use…

A: Soap molecules has hydrophilic head and a hydrophobic tail, they are composed of long chains of…

Q: You have two bottles, each of which contains a white, crystalline substance. Your lab director tells…

A: In the question, one has to test which bottle contain sucrose and which bottle contain lactose…

Q: All of the following are lipid except. A. Waxes B. Oils C. Butter D. Ether

A: Lipids are organic molecules which are insoluble in water. Lipids include waxes, fats, oils and…

Q: Which of the following chemical reactions is represented in the figure?

A: In the diagram two molecules are getting joined. These two molecules are serine and valine. Serine…