A molecule of ammonia contains one atom of nitrogenand three atoms of hydrogen. These are linked with ________.a. ionic bondsb. nonpolar covalent bonds c. polar covalent bondsd. hydrogen bonds

Q: Which parts of an element do not vary in number?a. electronsb. neutronsc. protonsd. All of these…

A: Electrons are negatively charged. Protons are positively charged. Neutrons are neutral.

Q: lons are: a. atoms or molecules with unequal numbers of electrons and protons b. atoms or molecules…

A: Question - lons are -  a.) atoms or molecules with unequal numbers of electrons and protons b.)…

Q: Hydrogen bonds are formed as a result of which of the following?a. ionic bondsb. nonpolar covalent…

A: Bond is the link between molecules or atoms, bonds form due to the attraction between different…

Q: What type of bonds form between oxygen & Hydrogen atom

A: The hydrogen an atom and oxygen atom together forms water molecule.

Q: Water has some very unusual properties. These properties occur because of thea. hydrogen bonds…

A: There are four types of bonds that are involved in different molecules. These bonds are ionic bonds,…

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: 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: 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: The cholesterol molecule is OA. an aromatic ring OB. a straight chain acid O c. a steroid OD.…

A: The cholesterol molecule is a type of lipid molecule that is essential for the proper function of…

Q: CO2 is a has elements and its atoms are linked together by bond Select one: O a. Element, three,…

A: Carbon is the most abundant and essential element found in living organisms. All the biomolecules…

Q: A hydrogen bond can form between____________ adjacent to each other.a. two hydrogen atomsb. two…

A: A hydrogen bond is a bond between hydrogen and any other electronegative atom either nitrogen or…

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: 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: A free radiacal is  a) Any charged particel  b) An atom or molecule with unpaired electron in the…

A: Ans- b) An atom or molecule with an unpaired electron in the outer shell The free radical define as…

Q: The red dotted lines represent O peptide bonds hydrogen bonds O covalent bonds O hydrogen bonds…

A: A motif in protein structure refers to a chain-like biological structure made up of connectivity…

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: In a water molecule, hydrogens are partially _____; oxygens are partially _____.

A: Hydrogens : It is the chemical element with the symbol H and atomic number 1 with a standard atomic…

Q: Which of these is not a characteristic of carbon?   Select one: A.  Can form long chains B.…

A: Ans: D Is sometimes ionic

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: The mutual attraction of opposite charges holds atomstogether as molecules in a(n) ________ bond.a.…

A: There are two types of covalent bonds: Polar and Non-polar In nonpolar covalent bonds, equal…

Q: Each carbon atom can bond with as many as-_________ other atom(s). a. one c. three b. two d. four

A: Bonds play a vital role in various biochemical interactions. There are 4 major types of bonds.…

Q: What atom has only one proton?a. hydrogen   d. a free radicalb. an isotope  e. a radioisotopec.…

A: Proton is the positivity charged particle found in the nucleus of atom,it is small in structure with…

Q: Which of the following is NOT a force involved in tertiary structure? O salt bridges O polar…

A: The primary structure of the protein is non functional, and to be functional a protein should…

Q: Which statement is false? A. Elements are found in compounds and molecules B. compounds are made…

A: The pure substances consisting of only atoms with the same number of protons and cannot be…

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: Which interaction between atoms is the strongest? van der Waals forces Ionic attraction O…

A: Intermolecular forces (interaction) are the forces which help in interaction between atoms, based on…

Q: Fatty acids in phospholipids and triacylglycerols interact with one another by (a) disulfide bridges…

A: The correct answer to the above question is e. Fatty acids in phospholipids and triacylglycerols do…

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: bonding. A bond is a connection between two atoms, created when atoms either share electrons to form…

A: Bonds are attraction between atoms, ions, or molecules that are required for the formation of…

Q: Carbons is used in cells for  a) forming the charge across the membrane by serving a positive…

A: Cell mass - Composed of elements present in nature out of which carbon is a very important element.

Q: The slight positive charge of a hydrogen atom in one water molecule is drawn to the slight negative…

A: Opposite charges attract one another.

Q: 1. Polar Covalent Bonds a. Draw one water molecule. b. Indicate which bonds are polar covalent bonds…

A: Water is a polar molecule. It made up of 2 hydrogen atoms and 1 oxygen atom. Molecular formula…

Q: Which molecules are very dependent on amide bonds? O Proteins RNA O Amylose O DNA

A: Amide bonds is also known as peptide bonds are the covalent chemical bonds that are involved in…

Q: Which of the following statements is incorrect? a. Isotopes have the same atomic number and…

A: Every chemical has more then 1 isotope. Atmos is the smallest unit of a chemical compound. Electrons…

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 elements is mismatched with its properties or function? (a) carbon—forms the…

A: Answer : All of the above are correctly matched.

Q: Which of the following bond/s results from a sharing of electron(s) between atoms ? [MA} ionic bond…

A: 1) Water:  it is essential for life. water is the most abundant substance in the living cell. It is…

Q: Noncovalent bonds include all of the following except: a. van der Waals interaction b. ionic bonds…

A: Non-covalent bond is a type of chemical bond that does not involve in sharing of electrons whereas…

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: 90% of our body is made of water. Use a water molecule to describe the relationship among all the…

A: 60% is water in the human adult body. The human brain and heart are made of 73% water. Lungs are…

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: 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: How is a covalent bond formed?    A. two atoms share two pairs of electrons B. two atoms share two…

A: Bonds are interaction between chemical species like atoms , molecule or ions to form a stable…

Q: Sodium and Chloride make salt by forming bonds. These weak bonds are easily broken by the chemical…

A:

Q: Considering only the side chains of the amino acids in the molecule shown above, how many can…

A: Hydrogen bonding is the bonding between the Hydrogen in a molecular dipole and an electronegative…

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: You discover a new molecule. The new molecule is made up entirely of carbon and hydrogen (no other…

A: Ans- (a) lipid

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…