- gst boces
... Things to Know to Pass the Chemistry Regents 1. Protons: charge +1, mass 1 amu, in nucleus, = atomic number *1 amu = 1/12 a carbon-12 atom 2. Neutrons: charge 0, mass 1 amu, in nucleus, = mass number - atomic number 3. Electrons: charge -1, mass 0 (1/1836) amu, in e- cloud surrounding nucleus, = ato ...
... Things to Know to Pass the Chemistry Regents 1. Protons: charge +1, mass 1 amu, in nucleus, = atomic number *1 amu = 1/12 a carbon-12 atom 2. Neutrons: charge 0, mass 1 amu, in nucleus, = mass number - atomic number 3. Electrons: charge -1, mass 0 (1/1836) amu, in e- cloud surrounding nucleus, = ato ...
CHEMISTRY FINAL EXAM REVIEW SHEET
... Hydrogen is usually +1. Oxygen is usually –2. In a compound, the more electronegative element is given an oxidation number equal to its usual ionic charge. The sum of the oxidation numbers must equal the overall charge on the compound or ion. ...
... Hydrogen is usually +1. Oxygen is usually –2. In a compound, the more electronegative element is given an oxidation number equal to its usual ionic charge. The sum of the oxidation numbers must equal the overall charge on the compound or ion. ...
Lecture 1 Where it all Began
... Can not explain splitting of lines in a magnetic field – Modified Bohr-Sommerfield (elliptical orbits - not satisfactory) ...
... Can not explain splitting of lines in a magnetic field – Modified Bohr-Sommerfield (elliptical orbits - not satisfactory) ...
AP Unit 0: Chemical Foundations
... ◦ Compounds are formed by the combination of different atoms in the ratio of small whole numbers. ◦ A chemical reaction involves only the rearrangement of atoms; ◦ atoms are not created / destroyed ...
... ◦ Compounds are formed by the combination of different atoms in the ratio of small whole numbers. ◦ A chemical reaction involves only the rearrangement of atoms; ◦ atoms are not created / destroyed ...
Transparancies for Atomic Structure Section
... Orbital Magnetic Interaction energy equation So, for example, p state l=1, with possible m=-1,0,+1, splits into 3 Energy levels according to Zeeman effect ...
... Orbital Magnetic Interaction energy equation So, for example, p state l=1, with possible m=-1,0,+1, splits into 3 Energy levels according to Zeeman effect ...
AP Chemistry 2013 Semester 1 Final Exam Review Problems
... Chapter 3: Chemical Equations and Stoichiometry Topics: Compounds and the mole; molar mass, describing compound formulas (percent composition, empirical vs. molecular formula, etc.); hydrated Compounds; balancing chemical equations; mass relationships in chemical reactions: stoichiometry; limiting r ...
... Chapter 3: Chemical Equations and Stoichiometry Topics: Compounds and the mole; molar mass, describing compound formulas (percent composition, empirical vs. molecular formula, etc.); hydrated Compounds; balancing chemical equations; mass relationships in chemical reactions: stoichiometry; limiting r ...
File
... • Mixture-a combination of substances that occurs without any chemical reaction. Substances in the mixture retain their own properties and may be physically separated from one another. • Molecule-a chemically bonded cluster of atoms. • Periodic Table of Elements-originally developed by Dimitri Mend ...
... • Mixture-a combination of substances that occurs without any chemical reaction. Substances in the mixture retain their own properties and may be physically separated from one another. • Molecule-a chemically bonded cluster of atoms. • Periodic Table of Elements-originally developed by Dimitri Mend ...
Midterm Review Date
... 37. What is the total number of oxygen atoms in the formula MgSO 4 • 7 H 2O? [The • represents seven units of H 2O attached to one unit of MgSO 4 .] A) 11 ...
... 37. What is the total number of oxygen atoms in the formula MgSO 4 • 7 H 2O? [The • represents seven units of H 2O attached to one unit of MgSO 4 .] A) 11 ...
Basic Chemistry - Biology with Radjewski
... • If two atoms have similar electronegativities, they share electrons equally, in what is called a nonpolar covalent bond. • If atoms have different electronegativities, electrons tend to be near the most attractive atom, in what is called a polar covalent bond ...
... • If two atoms have similar electronegativities, they share electrons equally, in what is called a nonpolar covalent bond. • If atoms have different electronegativities, electrons tend to be near the most attractive atom, in what is called a polar covalent bond ...
Ionic Bonding
... eight electrons in their outer energy levels (or two in the case of helium). These noble gas structures are thought of as being in some way a "desirable" thing for an atom to have. You may well have been left with the strong impression that when other atoms react, they try to organize things such th ...
... eight electrons in their outer energy levels (or two in the case of helium). These noble gas structures are thought of as being in some way a "desirable" thing for an atom to have. You may well have been left with the strong impression that when other atoms react, they try to organize things such th ...
Chapter 5
... amount of energy that can be gained or lost by an atom. This is demonstrated by the equation: Equantum = h Where E is energy, h is Planck’s constant (6.626 x 10-34 J.s), & is frequency. ...
... amount of energy that can be gained or lost by an atom. This is demonstrated by the equation: Equantum = h Where E is energy, h is Planck’s constant (6.626 x 10-34 J.s), & is frequency. ...
Name: Date: Chemistry Enriched Per. ______ Midterm Review
... Describe both Thomson’s cathode ray experiment and Rutherford’s gold foil experiment and how this changed our understanding of the atom. What models of the atom did each propose as a result of their experiments? Thomson’s Cathode Ray Experiment ...
... Describe both Thomson’s cathode ray experiment and Rutherford’s gold foil experiment and how this changed our understanding of the atom. What models of the atom did each propose as a result of their experiments? Thomson’s Cathode Ray Experiment ...
Ch 2 Atomic History
... Atoms of the same element are exactly the same; atoms of different elements are different. ...
... Atoms of the same element are exactly the same; atoms of different elements are different. ...
PPT - gserianne.com
... • control rates of metabolic reactions • lower activation energy needed to start reactions • two important factors controlling enzyme activity: temperature and pH • not consumed in chemical reactions • substrate specific • shape of active site determines which substrate(s) the enzyme can act on Figu ...
... • control rates of metabolic reactions • lower activation energy needed to start reactions • two important factors controlling enzyme activity: temperature and pH • not consumed in chemical reactions • substrate specific • shape of active site determines which substrate(s) the enzyme can act on Figu ...
Ch. 2 The Chemistry of Life
... - _____ contains the sugar _________, _____ contains the sugar _______________ ...
... - _____ contains the sugar _________, _____ contains the sugar _______________ ...
Exam #2
... Given that Hf for MgCl2 is -641.6 kJ/mol and Hf for KCl is -435.9 kJ/mol, calculate Hrxn for the following equation: ...
... Given that Hf for MgCl2 is -641.6 kJ/mol and Hf for KCl is -435.9 kJ/mol, calculate Hrxn for the following equation: ...
Ion Exchange
... Ion-exchange chromatography retains analyte molecules on the column based on coulombic (ionic) interactions. The stationary phase surface displays ionic functional groups (R-X) that interact with analyte ions of opposite charge. An ion-exchange resin or ion-exchange polymer is an insoluble matrix no ...
... Ion-exchange chromatography retains analyte molecules on the column based on coulombic (ionic) interactions. The stationary phase surface displays ionic functional groups (R-X) that interact with analyte ions of opposite charge. An ion-exchange resin or ion-exchange polymer is an insoluble matrix no ...
Rutherford backscattering spectrometry
Rutherford backscattering spectrometry (RBS) is an analytical technique used in materials science. Sometimes referred to as high-energy ion scattering (HEIS) spectrometry, RBS is used to determine the structure and composition of materials by measuring the backscattering of a beam of high energy ions (typically protons or alpha particles) impinging on a sample.