Chemistry ~ Fall Final Review
... Final is comprehensive over the first semester. Half multiple choice. Half free response. Bring a calculator & something to write with. You may bring a 4x6 note card w/ notes on both sides (MUST be handwritten) You will be expected to show all work, use correct significant figures and include proper ...
... Final is comprehensive over the first semester. Half multiple choice. Half free response. Bring a calculator & something to write with. You may bring a 4x6 note card w/ notes on both sides (MUST be handwritten) You will be expected to show all work, use correct significant figures and include proper ...
Periodic Table Jeopardy
... A substance that cannot be separated or broken down into simpler substances by chemical means. All atoms in this substance have the same atomic #. ...
... A substance that cannot be separated or broken down into simpler substances by chemical means. All atoms in this substance have the same atomic #. ...
Bonding practice lessons 1-3
... The results of these tests suggest that A) both solids contain only ionic bonds B) both solids contain only covalent bonds C) solid A contains only covalent bonds and solid B contains only ionic bonds D) solid A contains only ionic bonds and solid B contains only covalent bonds 22. The bonds between ...
... The results of these tests suggest that A) both solids contain only ionic bonds B) both solids contain only covalent bonds C) solid A contains only covalent bonds and solid B contains only ionic bonds D) solid A contains only ionic bonds and solid B contains only covalent bonds 22. The bonds between ...
General Chemistry First Semester Review General
... Know all of the topics listed above. If a particular question does not appear in this sampler, it is not mean that it will not appear on the Final. 1. Write the following numbers in standard scientific notation: (a) 7770 (b) 0.0075 (c) 0.125 2. Express the following in decimal form (ordinary number) ...
... Know all of the topics listed above. If a particular question does not appear in this sampler, it is not mean that it will not appear on the Final. 1. Write the following numbers in standard scientific notation: (a) 7770 (b) 0.0075 (c) 0.125 2. Express the following in decimal form (ordinary number) ...
Unit 2: Biochem Notes
... b. galactose – monosaccharide found in milk } not on test c. fructose – monosaccharide found in fruits } not on test Isomers – Molecules that share the same molecular formula, but their structural formulas differ. Glucose and fructose have the same molecular formula (C6H12O6), but different structur ...
... b. galactose – monosaccharide found in milk } not on test c. fructose – monosaccharide found in fruits } not on test Isomers – Molecules that share the same molecular formula, but their structural formulas differ. Glucose and fructose have the same molecular formula (C6H12O6), but different structur ...
1. Define each of the following terms: a.Alkaline earth metals
... to reverse all characteristics of a chemical change.) ...
... to reverse all characteristics of a chemical change.) ...
Midterm Review File
... d. Identify the element in the oxygen group whose outermost electrons are in the fourth energy level____. e. Identify the name of a group of elements that contains only metals______________. f. Identify a characteristic that elements in the same period have in common_____________. 20. Answer the fol ...
... d. Identify the element in the oxygen group whose outermost electrons are in the fourth energy level____. e. Identify the name of a group of elements that contains only metals______________. f. Identify a characteristic that elements in the same period have in common_____________. 20. Answer the fol ...
document
... 10. Single Displacement Reaction O compound. I. Bonds formed by gaining and losing 11. Double Displacement Reaction G electrons. J. A group of atoms that act as a 12. Reactants N single charged ion. K. States that matter cannot be 13. Products M created or destroyed. L. A reaction in which two or mo ...
... 10. Single Displacement Reaction O compound. I. Bonds formed by gaining and losing 11. Double Displacement Reaction G electrons. J. A group of atoms that act as a 12. Reactants N single charged ion. K. States that matter cannot be 13. Products M created or destroyed. L. A reaction in which two or mo ...
MatterPP4
... A mixture is a combination of two or more components that are NOT chemically combined, and retain their identities. Mixtures can be physically separated. The identities of the substances DO NOT change. ...
... A mixture is a combination of two or more components that are NOT chemically combined, and retain their identities. Mixtures can be physically separated. The identities of the substances DO NOT change. ...
Fall Exam 4 - Chemistry - University of Kentucky
... Calculate the molarity of a NaOH solution if 26.7 mL of 0.10 M HCl is required to completely neutralize 25.0 mL of the NaOH solution. ...
... Calculate the molarity of a NaOH solution if 26.7 mL of 0.10 M HCl is required to completely neutralize 25.0 mL of the NaOH solution. ...
Bond
... In a polar covalent bond, the electrons are more attracted to the atom with the greater electronegativity. This results in a partial negative charge on that atom. The atom with the smaller electronegativity value acquires a partial positive charge. Molecular Polarity Molecules composed of covalently ...
... In a polar covalent bond, the electrons are more attracted to the atom with the greater electronegativity. This results in a partial negative charge on that atom. The atom with the smaller electronegativity value acquires a partial positive charge. Molecular Polarity Molecules composed of covalently ...
Atom (A) or Ion
... 17. This substance is nitrogen. 18. This substance is carbon. 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny ind ...
... 17. This substance is nitrogen. 18. This substance is carbon. 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny ind ...
Atom (A) or Ion (I)
... 17. This substance is nitrogen. 18. This substance is carbon. 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny ind ...
... 17. This substance is nitrogen. 18. This substance is carbon. 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny ind ...
Atom (A) or Ion (I)
... 17. This substance is nitrogen. 18. This substance is carbon. 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny ind ...
... 17. This substance is nitrogen. 18. This substance is carbon. 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny ind ...
Dipole Moment & Polarity
... D.M. of C-O is 2.3 D, the bond dipoles cancel each other and it has no net dipole moment ( = 0 D). Bonds are polar but molecule, is non-polar b) D.M. >0 unsymmetrical shape e.g. H2 O • Two O-H bonds, as there is some D.M. so the mol is angular The H─O bond is polar. Both sets of bonding electrons a ...
... D.M. of C-O is 2.3 D, the bond dipoles cancel each other and it has no net dipole moment ( = 0 D). Bonds are polar but molecule, is non-polar b) D.M. >0 unsymmetrical shape e.g. H2 O • Two O-H bonds, as there is some D.M. so the mol is angular The H─O bond is polar. Both sets of bonding electrons a ...
Stoichiometry Mole Concept Balancing Chemical Equations
... Lewis structures are a means of determining stable electron arrangements in molecules. It considers the valence electrons of an atom only. A stable arrangement is one in which each atom has achieved a Noble gas electron configuration by distribution of the electrons as bond pairs or lone pairs (non- ...
... Lewis structures are a means of determining stable electron arrangements in molecules. It considers the valence electrons of an atom only. A stable arrangement is one in which each atom has achieved a Noble gas electron configuration by distribution of the electrons as bond pairs or lone pairs (non- ...
What is matter made of?
... Said that electrons orbit the nucleus along certain paths called energy levels or orbitals. Chemical properties are determined by the electrons in the outermost orbit. ...
... Said that electrons orbit the nucleus along certain paths called energy levels or orbitals. Chemical properties are determined by the electrons in the outermost orbit. ...
Document
... Add subscripts so that the sum of the positive and negative oxidation numbers is zero. The Crisscross Method or Swap N’ Drop Method can also work. 4) All compounds are neutral so the oxidation numbers should combine in ratios that will add up to zero. The number of ions combining in the compound wil ...
... Add subscripts so that the sum of the positive and negative oxidation numbers is zero. The Crisscross Method or Swap N’ Drop Method can also work. 4) All compounds are neutral so the oxidation numbers should combine in ratios that will add up to zero. The number of ions combining in the compound wil ...
Lecture 24 (Slides) October 18
... can be transferred (usually from a metal to a nonmetal) to form ionic bonds. In other cases, pairs of electrons can be shared (usually between nonmetal atoms) to form covalent bonds. In both cases valence electrons are somehow “rearranged” when new chemical bonds are formed. Bond “strengths” vary wi ...
... can be transferred (usually from a metal to a nonmetal) to form ionic bonds. In other cases, pairs of electrons can be shared (usually between nonmetal atoms) to form covalent bonds. In both cases valence electrons are somehow “rearranged” when new chemical bonds are formed. Bond “strengths” vary wi ...
File
... – Atoms attempt to acquire an outer orbital with eight electrons through chemical reactions. – This gives them an outer shell configuration like their nearest noble gas and therefore they become stable. – From the family number of the representative elements, you can determine the number of valence ...
... – Atoms attempt to acquire an outer orbital with eight electrons through chemical reactions. – This gives them an outer shell configuration like their nearest noble gas and therefore they become stable. – From the family number of the representative elements, you can determine the number of valence ...
Bonding - Berkeley City College
... • Formal charge is apparent charge on an atom in a Lewis formula; it is determined as follows: • Formal charge = (Atom’s group #) – (# of lone-pair electrons on the atom) – (# of covalent bonds the atom forms) ...
... • Formal charge is apparent charge on an atom in a Lewis formula; it is determined as follows: • Formal charge = (Atom’s group #) – (# of lone-pair electrons on the atom) – (# of covalent bonds the atom forms) ...
Bonding Nomenclature Notes
... 3) Add prefixes to both indicating the number of atoms of each element ...
... 3) Add prefixes to both indicating the number of atoms of each element ...
An element`s properties depend on the structure of its atoms
... • A covalent bond is the sharing of a pair of valence electrons by two atoms • In a covalent bond, the shared electrons count as part of each atom’s valence shell • A covalent bond is formed between shared pairs of electrons: 1 pair—a single bond 2 pairs—a double bond 3 pairs—a triple bond ...
... • A covalent bond is the sharing of a pair of valence electrons by two atoms • In a covalent bond, the shared electrons count as part of each atom’s valence shell • A covalent bond is formed between shared pairs of electrons: 1 pair—a single bond 2 pairs—a double bond 3 pairs—a triple bond ...
Class Notes 2
... backbone C = O group i – 3.6 residues per turn (5.4 Å, 1.5 Å per residue) • Variations, with chain more loosely or tightly coiled are possible (i+3 or i+5 instead of i+4) but not often ...
... backbone C = O group i – 3.6 residues per turn (5.4 Å, 1.5 Å per residue) • Variations, with chain more loosely or tightly coiled are possible (i+3 or i+5 instead of i+4) but not often ...
Resonance (chemistry)
In chemistry, resonance or mesomerism is a way of describing delocalized electrons within certain molecules or polyatomic ions where the bonding cannot be expressed by one single Lewis formula. A molecule or ion with such delocalized electrons is represented by several contributing structures (also called resonance structures or canonical forms).Each contributing structure can be represented by a Lewis structure, with only an integer number of covalent bonds between each pair of atoms within the structure. Several Lewis structures are used collectively to describe the actual molecular structure, which is an approximate intermediate between the canonical forms called a resonance hybrid. Contributing structures differ only in the position of electrons, not in the position of nuclei.Electron delocalization lowers the potential energy of the substance and thus makes it more stable than any of the contributing structures. The difference between the potential energy of the actual structure and that of the contributing structure with the lowest potential energy is called the resonance energy or delocalization energy.Resonance is distinguished from tautomerism and conformational isomerism, which involve the formation of isomers, thus the rearrangement of the nuclear positions.