Weber, Hazardous Materials Technician Chapter 4

Chapter 4: Chemistry The basic components of an atom are: (p. 86 ) Protons, neutrons, and ions Protium, neutrons, and electrons Protons, neutrons, and electrons Protons, nuclei, and electrons The atomic number and the type of element is determined by the number of: (p. 87 ) Neutrons Protons Atoms Electrons The nucleus of an atom contains: (p.86 ) Electrons Protons Neutrons Both b and c The columns of the periodic table are called: (p.88 ) Periods Gangs Groups Classes Which of the following are properties of non-metals? (p.91 ) Are poor conductors of heat, are poor conductors of electricity, may be a solid, liquid or gas when at room temperature Are good conductors of heat, are good conductors of electricity, may be a solid or liquid Are usually inert gases, are poor conductors of electricity, are poor conductors of heat Are good conductors of electricity when in solid form, all non-metals are non-flammable Which of the following elements are considered types of metals? (p.90 ) Transitional metals, chalcogen, alkali, and noble gases Alkali, alkaline earth, and transitional metals Transitional metal, halogen, earth metals, and alkali Transitional metal, alkali elements, and noble gas Which of the following elements is NOT an example of a halogen? (p.91 ) Bromine Fluorine Chlorine Tellurium Which group does magnesium belong to? (p.91 ) Alkaline earth metals Transitional metals Alkali metals Chalcogens Chlorine is an element that is included in which of the groups? (p.91 ) Non-metals Chalcogens Halogens Alkali metals When two or more atoms become bonded by transferring one or more electrons between each other, this is referred to as a(n): (p.93 ) Covalent bond Ionic bond Compound bond Single bond Covalent bonds are formed when: (p.94 ) Two or more atoms, typically two non-metals, combined by sharing one or more electrons. Two or more electrons are combined creating a shared electron. Two or more atoms, typically a metal and a non-metal, become attached by transferring one or more electrons between each other. Three or more atoms, typically at least two metals, combine by sharing two or more electrons. Substances made up of two or more different types of atoms are known as a(n): (p.96 ) Covalent bond Double bond Octet rule Compound A compound that has at LEAST one ionic bond in it is referred to as a(n): (p.97 ) Covalent compound Ionic compound Molecule Non-salt A solution is defined as: (p.112 ) A mixture of a solid and a liquid that are not uniform A combination of two liquid chemical A uniform, or homogenous, mixture of two or more materials (typically a solid dissolved in a liquid) Two solutes mixed equally together Which of the following statements about hydrocarbons is INCORRECT? (p. 103 ) The simplest hydrocarbon contains only carbon and hydrogen Hydrocarbon derivatives contains additional atoms or groups of atoms besides carbon and hydrogen Ethers are a hydrocarbon derivative that contain nitrogen in addition to carbon and hydrogen Hydrocarbons typically have a flashpoint and a flammable range that can be detected by a flame ionization detector (FID) A hydrocarbon radical that is bound to a phosphate atom and an oxygen atom is known as: (p.105 ) Thiols Carbamates Nitriles Organophosphates All of the following chemicals are from the amines family EXCEPT: (p.109 ) Methylamine Methanol Ethylamine Aniline Mixtures made up where the solid does NOT completely dissolve when wetted by a liquid, or suspended in a liquid is known as a: (p.112 ) Slurry Solution Compound Bond Which of the following statements about concentration and strength is NOT correct? (p. 113) A concentrated solution has copious levels of a solute dissolved in the solvent A dilute solution has a weak concentration A solution that has a great amount of liquid and a small amount of solute has a high concentration A mixture that has a diluted solute in a solution is a weak concentration Compounds made up of hydrocarbon derivatives that are strong oxidizers and potentially very explosive are from which group? (p. 110 ) Carbamates Nitro groups Amides Nitriles Answer Key: 1. c 2. b 3. d 4. c 5. a 6. b 7. d 8. a 9. c 10. b 11. a 12. d 13. b 14. c 15. c 16. d 17. b 18. a 19. c 20. b Weber, Hazardous Materials Technician ©2013 by Education, Inc.