CHEM104 Examlette 1 – ANSWERS TOTAL POINTS = 94 Multiple
... c) Pick one type of solid from (a) and explain what energies and forces are involved when the solid dissolves in a liquid to make a solution. (4 pts): The strong ionic bonding in ionic alts must be broken—this is the negative of the lattice enthalpy— and is very endothermic. This is compensated by t ...
... c) Pick one type of solid from (a) and explain what energies and forces are involved when the solid dissolves in a liquid to make a solution. (4 pts): The strong ionic bonding in ionic alts must be broken—this is the negative of the lattice enthalpy— and is very endothermic. This is compensated by t ...
Answer Key, Problem Set 6 – complete, with explanations
... ions, I have shown the ions as “touching” here—you could have shown them with a bit of space in between them as well, as long as the amount of space in between was roughly “equal” for all adjacent ions). To further ...
... ions, I have shown the ions as “touching” here—you could have shown them with a bit of space in between them as well, as long as the amount of space in between was roughly “equal” for all adjacent ions). To further ...
Summaries of Review Topics for AP Chemistry
... (IUPAC stands for International Union of Pure and Applied Chemistry) Rule #1: Identify and name acids: acids are covalent compounds which formulas start with H (except H2O and H2O2). Find their name in the “Names and Formulas of Acids” below. If the acid is made with a polyatomic ion, change the end ...
... (IUPAC stands for International Union of Pure and Applied Chemistry) Rule #1: Identify and name acids: acids are covalent compounds which formulas start with H (except H2O and H2O2). Find their name in the “Names and Formulas of Acids” below. If the acid is made with a polyatomic ion, change the end ...
1 - Hatboro
... 21. If a substance has a mass of 3.2g and a volume of 8.7 ml. What is its density. 22. How do you convert from celsius to kelvin? 23. Where on the periodic table are the metals? Metalloids? Nonmetals? Nobel gases? 24. What is Dalton's atomic theory? 25. What is an atomic mass unit? 26. What is the l ...
... 21. If a substance has a mass of 3.2g and a volume of 8.7 ml. What is its density. 22. How do you convert from celsius to kelvin? 23. Where on the periodic table are the metals? Metalloids? Nonmetals? Nobel gases? 24. What is Dalton's atomic theory? 25. What is an atomic mass unit? 26. What is the l ...
ppt
... Most of the mass of an atom is in the small, dense nucleus. ● The radius of an atom is about 100,000 times larger than the radius of the nucleus. ● Electrons are located around the nucleus in orbitals. ● Orbitals – not distinct like planetary orbits, but 3-D regions where electrons can probably be ...
... Most of the mass of an atom is in the small, dense nucleus. ● The radius of an atom is about 100,000 times larger than the radius of the nucleus. ● Electrons are located around the nucleus in orbitals. ● Orbitals – not distinct like planetary orbits, but 3-D regions where electrons can probably be ...
AP Chem Equations - Speedway High School
... reaction will occur. These equations need to be written in net ionic form. All spectator ions must be left out and all ions must be written in ionic form. All molecular substances and insoluble compounds must be written together (not ionized!). Know your solubility rules!!! ...
... reaction will occur. These equations need to be written in net ionic form. All spectator ions must be left out and all ions must be written in ionic form. All molecular substances and insoluble compounds must be written together (not ionized!). Know your solubility rules!!! ...
WRITING AP EQUATIONS AP equation sets are found in the free
... reaction will occur. These equations need to be written in net ionic form. All spectator ions must be left out and all ions must be written in ionic form. All molecular substances and insoluble compounds must be written together (not ionized!). Know your solubility rules!!! ...
... reaction will occur. These equations need to be written in net ionic form. All spectator ions must be left out and all ions must be written in ionic form. All molecular substances and insoluble compounds must be written together (not ionized!). Know your solubility rules!!! ...
Redox in Electrochemistry
... one standard electrode, the standard hydrogen electrode. This electrode can act as an oxidation half-reaction OR a reduction half-reaction, depending upon the half-cell to which it is connected. Over the years, chemists have measured and recorded the standard reduction potentials, abbreviated ______ ...
... one standard electrode, the standard hydrogen electrode. This electrode can act as an oxidation half-reaction OR a reduction half-reaction, depending upon the half-cell to which it is connected. Over the years, chemists have measured and recorded the standard reduction potentials, abbreviated ______ ...
Chapter 7 Chemical Formulas and Chemical Compounds
... elements that are more electronegative, and -1 when combined with metals. 6. The algebraic sum of the oxidation numbers of all atoms in a neutral compound is equal to zero. 7. The algebraic sum of the oxidation numbers of all atoms in a polyatomic ion is equal to the charge on the ion. 8. Oxid ...
... elements that are more electronegative, and -1 when combined with metals. 6. The algebraic sum of the oxidation numbers of all atoms in a neutral compound is equal to zero. 7. The algebraic sum of the oxidation numbers of all atoms in a polyatomic ion is equal to the charge on the ion. 8. Oxid ...
Chem 111 Summer 2003 Exam I Whelan Some Useful And Not So
... Metal, Non Metal, Halide, Noble Gas, Alkali Metal, Alkali Earth Metal, Transition Metal, Lanthanide or Actinide. ...
... Metal, Non Metal, Halide, Noble Gas, Alkali Metal, Alkali Earth Metal, Transition Metal, Lanthanide or Actinide. ...
Electrons
... 4. The oxidation number of hydrogen is____except when it is bonded to metals in binary compounds. In these cases, its oxidation number is____. 5. Group 1 metals are____, Group 2 metals are____and fluorine is always____. 6. The sum of the oxidation numbers of all the atoms in a molecule or ion is eq ...
... 4. The oxidation number of hydrogen is____except when it is bonded to metals in binary compounds. In these cases, its oxidation number is____. 5. Group 1 metals are____, Group 2 metals are____and fluorine is always____. 6. The sum of the oxidation numbers of all the atoms in a molecule or ion is eq ...
chemistry — released form
... The bonds of metallic substances are composed of delocalized electrons, and the bonds of ionic substances are composed of transferred electrons. ...
... The bonds of metallic substances are composed of delocalized electrons, and the bonds of ionic substances are composed of transferred electrons. ...
ElectronicStructureSurfaces.pdf
... Semi-conductors are materials with an electrical conductivity that increases with increasing temperature, a trend that is opposite to that of metals. Semi-conductors characteristically have a band gap between the valence and conduction bands that is smaller than that found in the insulators. The rea ...
... Semi-conductors are materials with an electrical conductivity that increases with increasing temperature, a trend that is opposite to that of metals. Semi-conductors characteristically have a band gap between the valence and conduction bands that is smaller than that found in the insulators. The rea ...
The Formation of Solvated Electrons in the Photochemistry of the
... chemical data" where the value 0.2 to 0.3 was obtained. The ratio (ks,o + e , , - ) , j ( k H s o + + as calculated from radiation chemicalI2 and photochemical1@data is approximately il.9. One therefore gets k~~ + e a e - j k ~+z ~ e4Q- = 0.4 to 0.6, in fair agreement with the value obtained in our ...
... chemical data" where the value 0.2 to 0.3 was obtained. The ratio (ks,o + e , , - ) , j ( k H s o + + as calculated from radiation chemicalI2 and photochemical1@data is approximately il.9. One therefore gets k~~ + e a e - j k ~+z ~ e4Q- = 0.4 to 0.6, in fair agreement with the value obtained in our ...
Chapter 7
... • Binary compounds are those formed from only 2 elements. • To write their formulas the positive ion is written first and then the negative. • To name them use the complete name of the positive ion and add the negative ion name but change the ending to “-ide.” (Sulfur becomes sulfide, oxygen becomes ...
... • Binary compounds are those formed from only 2 elements. • To write their formulas the positive ion is written first and then the negative. • To name them use the complete name of the positive ion and add the negative ion name but change the ending to “-ide.” (Sulfur becomes sulfide, oxygen becomes ...
Atomic Structure and Stoichiometry Summary Sheet
... 2. Atoms of a given element are identical in size, mass and other properties; atoms of different elements differ in size, mass and other properties. 3. Atoms cannot be subdivided, created or destroyed. 4. Atoms of different elements combine in simple whole number ratios to form chemical compoun ...
... 2. Atoms of a given element are identical in size, mass and other properties; atoms of different elements differ in size, mass and other properties. 3. Atoms cannot be subdivided, created or destroyed. 4. Atoms of different elements combine in simple whole number ratios to form chemical compoun ...
Semester 2 Final Exam
... (A) 1 double bond, 2 single bonds. (B) 1 triple bond, 2 single bonds. (C) 2 double bonds, 1 single bond. (D) 3 single bonds. 55. The total number of dots drawn in the Lewis structure of nitrogen, N2, is (A) 5 (B) 10 (C) 14 (D) 16 56. Which one of these molecules is polar? (A) Cl2 (B) NH3 (C) CO2 (D) ...
... (A) 1 double bond, 2 single bonds. (B) 1 triple bond, 2 single bonds. (C) 2 double bonds, 1 single bond. (D) 3 single bonds. 55. The total number of dots drawn in the Lewis structure of nitrogen, N2, is (A) 5 (B) 10 (C) 14 (D) 16 56. Which one of these molecules is polar? (A) Cl2 (B) NH3 (C) CO2 (D) ...
Chapter 7 - Angelfire
... • Binary compounds are those formed from only 2 elements. • To write their formulas the positive ion is written first and then the negative. • To name them use the complete name of the positive ion and add the negative ion name but change the ending to “-ide.” (Sulfur becomes sulfide, oxygen becomes ...
... • Binary compounds are those formed from only 2 elements. • To write their formulas the positive ion is written first and then the negative. • To name them use the complete name of the positive ion and add the negative ion name but change the ending to “-ide.” (Sulfur becomes sulfide, oxygen becomes ...
Redox Reactions - hrsbstaff.ednet.ns.ca
... Oxidation and reduction reaction = redox rxn Oxidation is loss of electrons and reduction is gain of electrons = transfer of electrons Those 2 reactions are occurring simultaneously ...
... Oxidation and reduction reaction = redox rxn Oxidation is loss of electrons and reduction is gain of electrons = transfer of electrons Those 2 reactions are occurring simultaneously ...
Study Guide
... What is the quantity represented by the mass number minus the atomic number? number of atoms number of neutrons number of electrons number of protons number of particles in the nucleus ...
... What is the quantity represented by the mass number minus the atomic number? number of atoms number of neutrons number of electrons number of protons number of particles in the nucleus ...
CH100: Fundamentals for Chemistry
... solutions (single phase homogeneous mixtures) Suspensions (multi-phase homogeneous mixtures) ...
... solutions (single phase homogeneous mixtures) Suspensions (multi-phase homogeneous mixtures) ...
PSI AP Chemistry Name Unit 4: Chemical Bonding MC Review Part
... (A) neopentane is more polarized due to having fewer electrons (B) N-pentane is more polarized due to having more electrons (C) They all have equal numbers of electrons but neopentane has less surface area (D) neopentane and n-pentane have equal numbers of electrons but n-pentane has more surface ar ...
... (A) neopentane is more polarized due to having fewer electrons (B) N-pentane is more polarized due to having more electrons (C) They all have equal numbers of electrons but neopentane has less surface area (D) neopentane and n-pentane have equal numbers of electrons but n-pentane has more surface ar ...