1. which of the following is happen during a reaction? a. covalent bonds are formed but...
AJ by oxygen Donas Bjoy nyarogen bonas ionic bonds D) by nonpolar covalent bonds Coy E) by isotopes 29) Which answer below best describes H,0? A) Water molecule bonds are ionic bonds, in which electrons are gained and lost to create the bond. B) Water molecule bonds are oxygen bonds, in which oxygen atoms form bonds together. C) Water molecule bonds are polar covalent bonds, in which unequal sharing of electrons occurs. D) Water molecule bonds are nonpolar covalent bonds,...
1. Polar covalent bonds are formed when the electrons in the bond are not shared equally between the two nuclei. Which one of these molecules through polar bonds? a. molecular oxygen b. methane c. a hydrocarbon d. DNA 2. which motif is typically seen in cell membrane channel and transport proteins? a. double helix b. alpha helix c. phospholipid d. leucine zipper
19. Which of the following statements regarding ionic compounds is correct? A) Ions are held together in an ionic lattice by covalent bonds. B) The crystal structure of a given compound does not depend on the sizes and number of ions in a formula unit of the compound. C) Ionic compounds tend to have low melting points. D) Ionic compounds are formed when two metals react. E) In forming an ionic compound from its elements, one element transfers one or...
Ionic & Covalent Virtual Lab Pre-Virtual Lab Questions: Answer these before going to the website to begin the virtual lab. 1. Where are metal atoms located on the periodic table? Where are non metal atoms located on the periodic table? 2. What subatomic particles) participate in chemical bonding? 3. In your own words, define valence electrons. 4. How can you determine the number of valence electrons in an atom using the periodic table? 5. Draw a Lewis Dot Structure for...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
(CHO)n- CH1403a-C7H1407 C7H107 cellulose and chitin- starch and glycogen-sucrose-galactose- maltose-fructose-fatty acids- polymer-monomer-saturated- unsaturated-glycerol- glycogen-collagen hemoglobin-ribose- nitrogen base- chitin-phosphate group-insulin-pentose sugar-carbon- nitrogen- hydrogen-phosphorus- steroids- hydrolysis- dehydration-hydrogen bond- covalent bond-peptide bond- disulfide bond-guanine-cytosine- adenine-thymine- uracil-van der Waals-hydrophobic- sugar and phosphate bond- 1.A is a large organic molecule that contains repeating subunits called 2. A has fatty acids with double bonds, is liquid at room temperature and comes from a plant source. 3. Amino acids are joined together by bonds. 4. All molecules...
36. Which of the following contains only nonpolar covalent bonds? NaCl СО HI N2 D 37 For a collision between molecules to result in reaction, molecules must possess a certain minimum energy and exchange electrons interact with a catalyst for at least one second more than one correct response have a favorable orientation relative to each other when they collide no correct response
1,2,3,4,5,6 and 7 pls!
1. Glucose is stored as which molecule within the liver and skeletal muscle tissue? a. Starch b. Phospholipids c. Glycogen d. Glucagon 2. Atoms composed of the same number of protons and electrons, but a different number o neutrons, are called a. Isomers b. Isotopes c. lons d. Organic atoms 3. Intermolecular attractions between polar molecules are a. Hydrophobic interactions b. Hydrogen bonds c. James bonds d. lonic bonds 4. Which type of lipid is a...
1.histones are proteins that make up nucleosomes. they bind to the backbone of DNA in chromosomes. A majority of the residues in these proteins must be ___ for this to occur a) hydrophobic b) neg charged c)hydrophilic and neutral d)pos charged e)cytseines 2. the stability of a protein secondary structure is mostly due to a) the hydrogen bonding between the amide groups within the backbone of the protein b) the attraction for water molecules by hydrophobic amino acid residues c)...
1. Which of the following is not one of the four(4) macromolecules.a. Carbohydratesb. Lipidsc. Nudelc acidsd. Nope of the above2. A common characteristic of organic molecules versus inorganic molecules is: a. Usually involve ionic bondingb. Always contain a small number of atomsc. Always contain carbon and hydrogend. often associated with nonliving matte 3. Splitting of a bond by adding water refers to:a. A hydrolysis reactionb. A dehydration synthesis reactionc. Acid-base reactiond. All of the above4. The class of molecules that includes monosaccharides,...