Identify the LONE PAIR and BONDING PAIR of electrons: Ammonia H:N:H H When several compounds can...
Ammonia, NH3, is a weak base because a proton can readily bind to the lone pair on the nitrogen to produce the ammonium ion, NH4+. Organic compounds that contain nitrogen are also weak bases for the same reason. Amines are compounds derived from ammonia in which one or more of the hydrogens are replaced by a carbon-containing group (R). The simplest amine is methylamine in which is a "methyl" group, CH3. Its kb is 4.4 X 10-4. Write the balanced...
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Worksheet 6 Nomenclature 2 Covalent compounds, Binary Acids Naming binary containing only two nonmetals(Covalent compounds) Basie rule: Name of first element plus name of second element with "ide." Use the prefixes below to indicate the number of atoms of each clement present. Prefix Number Number Prefix hexa mono hepta octa nona tetra deca penta Note: the prefix mono is often omitted from the first element. Example: CO CO2 NOs carbon monoxide carbon dioxide dinitrogen pentoxide...
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...
A) The coordinate covalent bond is the bond formed when a ligand donates electrons to an empty orbital of a metal in a complex ion. But the covalent bond is sharing electrons between two non-metals (or if two elements electronegativity difference less than 2.0) ^True or False? B)Which of the following statements is FALSE regarding the ligands? All of statements are true A bidentate lignads has two coordination sites Ligand act as lewis base A ligand is a ion that...
9 Name IONIC and COVALENT BONDING LAB ACTIVITY, PROCEDURE and REPORT SHEET BIG IDEAS: ectron configurations determine how atoms combine to form chemical bonds. 2. According to the valence bond theory, the outermost electrons of atoms, the valence electrons, are the ones involved in bonding. 3. Atoms of elements can LOSE, GAIN, or SHARE electrons so that each atom involved achieves a noble gas electron configuration. This is known as the OCTET RULE 4. When atoms lose or gain electrons,...
Carbon can react with hydrogen to form several different compounds. Two compounds that contain only carbon and hydrogen are methane and ethylene. Select the statement that is an example of the law of multiple proportions. The mass ratio of carbon to hydrogen in methane is 3 : 1. The mass ratio of carbon to hydrogen in ethylene is 6: 1. Two different samples of methane have the same ratio of carbon to hydrogen. Two different samples of ethylene have the...
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The following two drawings are resonance structures of one compound. a-o But the following two drawings are not resonance structures Not resonance structures They are, in fact, two different compounds. Choose the correct explanation(s). Select all that apply. Benzene does not have three C-C single bond and three C-C double bonds. In fact, all six C-C bonds of the ring have the same bond order and same length. Benzene have three C- single bond...
Pre-Lab Exercise 2-3 Chemical Bonding One of the more challenging concepts to grasp in chemistry is chemical bonding, a topic that pops up again and again in A&P: We revisit it in cytology, the nervous system, blood, respiration, and digestion-to name just a few First let's do some basics. Use your textbook and this unit to answer the following questions 1. Do metals donate or accept electrons? What do they become after they donate/accept electrons? 2. Do nonmetals donate or...
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Identify the reagents for each of the following transformations. Select all that apply. V -a HC=CNa MCPBA NaOEt H2O2, NaOH NBS, heat Conc. H2S04, heat OBH3-THF OH PCC, CH2Cl2 Conc. H2SO4, heat OBH3-THF HC=CNa MCPBA H2O2, NaOH NBS, heat HCCNa ОМСРВА H2O2, NaOH PCC, CH2Cl2 Conc. H2SO4, heat The following two drawings are resonance structures of one compound. But the following two drawings are not resonance structures Not resonance structures They are, in fact,...
A covalent bond is a
bond in which electrons are shared between atoms of elements. A
covalent bond can be polar or nonpolar. In a nonpolar covalent
bond, the bond is between two identical atoms and the electrons are
evenly shared between the atoms.In contrast, in a
polar covalent bond, the bond is between two nonidentical atoms and
the electrons are unevenly shared between the atoms. The uneven
sharing of electrons takes place because of the difference in the
electronegativity...