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1. Determine the polarity of the molecules.
a. Carbon Tetrachloride
b. Carbon monoxide
c. Ammonia
d. Methyl Chloride
e. Sulfur Dioxide
f. Boron Trifluoride
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- 1. chemical bond A. The attraction between atoms resulting from the sharing of electrons or the transfer of electrons. 2. covalent bond B. Type of bond that occurs between non-metals in which electrons are shared. 3. functional group C. A part of a molecule that is often directly involved in a chemical reaction. 4. hydrogen bond D. The slightly positive charge on the hydrogen in a molecule interacts with the slightly negative care on nitrogen, oxygen or fluorine of another molecule. # 5. ionic bond 6. organic chemistry E. A bond in which one or more electrons are transferred from a metal to a non-metal. F. Branch of chemistry focused on compounds containing carbon and hydrogen. G. A bond between atoms that share electrons 7. polar covalent bond 8. non-polar covalent bond unequally H. A bond between atoms that share electrons equally.Which type of bond is most common between two nonmetal elements? A. Ionic B. Covalent C. Hydrogen D. AlphaWhich pairs of elements will form ionic compounds? a. lithium and bromine c. calcium and magnesium b. chlorine and oxygen d. barium and chlorine
- Which is NOT true of molecular compounds?A. Triple bonds are stronger than single bonds.B. Electrons are shared in covalent bonds.C. All atoms have eight valence electrons whenthey are chemically stable.D. Lewis structures show the arrangements ofelectrons in covalent molecules.1. Determine the polarity of the molecules. a. Methyl Chloride b. Sulfur Dioxide c. Boron TrifluorideMatch the following terms with definitions v Chemical bond is... A. Matter can not be created or destroyed, The mass of the reactants in a chemical reaction will equal the mass of the products. v The two types of bonding are... v Chemical reaction B. Subscripts C. Substances formed by a chemical reaction - v Reactants D. created, destroyed v Products E. Color change, Formation of a precipitate, Formation of a gas, Temperature Change, Production of an Odor, Production of Heat or Light. v Chemical reactions turn reactants into...? F. Substances at the beginning of a chemical reaction. v Reactants-> Bonds are broken, Products v Evidence of a chemical reaction G. Rearranged v Atoms are not changed by chemical reactions, rather they are.. H. new bonds formed v Atoms are not_ or_ by by chemical reactions. I. Products v Law of Conservation of Mass states that.. v The Law of Conservation and Mass states that in a chemical reactions the total mass of reactants is equal to the total mass of the…
- Multiple Choice |1. Ions that are formed from one atom are known as a. polyatomic ions. b. monatomic ions. c. cations. d. anions. 2. A group of atoms united by covalent bonds is a(an) a. cation. b. molecule. c. ionic compound. d. octet. 3. Ionic compounds are always a. electrically neutral. b. made up of atoms that share electrons c. polyatomic cations. d. the same as molecules. 4. To form a bond, atoms share a. neutrons. b. protons. c. inner-shell electrons. d. valence electrons. 5. A positively charged ion attracts a(an) a. neutral jon. b. cation. c. anion. d. proton. 6. Ionic compounds a. have high melting points. b. are brittle. c. are good conductors in their liquid state. d. all of the above. 7. During a chemical reaction, a. new elements are produced. b. atoms are destroyed. c. atoms are rearranged. d. elements are destroyed. |8. An equation is balanced by a. changing subscripts. b. erasing elements as necessary. c. adding coefficients. d. adding elements as necessary. 9. A…Which statement is incorrect? A. All molecules are compounds but not all compounds are molecules. (Semua molekul adalah sebatian tetapi tidak semua sebatian adalah molekul.) B. A molecule is formed when two or more atoms join together chemically. (Molekul dibentuk apabila dua atau lebih atom bergabung bersama secara chemical.) C. A compound is a molecule that contains at least two different elements. (Sebatian adalah molekul yang mengandungi sekurang-kurangkan dua unsur yang berbeza) D. All compounds are molecules but not all molecules are compounds. (Semua sebatian adalah molekul tetapi tidak semua molekul adalah sebatian.)9. Circle ALL the elements or compounds that have molecules as their basic units. A. PtO2 B. CO2. C. PCl3 D. carbon E. nitrogen
- Which type of bond is most common between metal and nonmetal elements? A. Ionic B. Covalent C. Hydrogen D. RefractoryCalculate the mass of Na in 80.0 g NaCl.A. 31.5 gB. 6.2 gC. 40.0 gD. 1.9 gWhen an atom gains electrons, ita. forms a negatively charged ion.b. forms a positively charged ion.c. forms covalent bonds.d. forms ionic bonds.e. gains atomic mass.