The Periodic table and subatomic particles
... Taste bitter and feel slippery (*NOTE: do not taste or touch in the lab) Have a pH less than 7 React with active metals to produce H2(g) ...
... Taste bitter and feel slippery (*NOTE: do not taste or touch in the lab) Have a pH less than 7 React with active metals to produce H2(g) ...
(1) Dissolves, accompanied by evolution of flammable gas (2
... For each of the following, use appropriate chemical principles to explain the observation. (a) Sodium chloride may be spread on an icy sidewalk, in order to melt the ice; equimolar amounts of calcium chloride are even more effective. (b) At room temperature, NH3 is a gas and H2O is a liquid, even th ...
... For each of the following, use appropriate chemical principles to explain the observation. (a) Sodium chloride may be spread on an icy sidewalk, in order to melt the ice; equimolar amounts of calcium chloride are even more effective. (b) At room temperature, NH3 is a gas and H2O is a liquid, even th ...
Dissociation of a Diatomic Gas
... Let us consider the following simple model for a diatomic gas: a diatomic molecule consists of a pair of point-like atoms, each of mass m, separated by a rigid rod of length a. The rigid rod corresponds to the chemical bond, which requires an energy to break. Now, at any finite temperature T , we ...
... Let us consider the following simple model for a diatomic gas: a diatomic molecule consists of a pair of point-like atoms, each of mass m, separated by a rigid rod of length a. The rigid rod corresponds to the chemical bond, which requires an energy to break. Now, at any finite temperature T , we ...
Microsoft Powerpoint
... are on a frictionless incline ( = 30°). The spring is compressed by xi = 0.31 m relative to its unstretched position at x = 0 and then released. What is the speed of the block when the spring is still compressed by xf = 0.14 m? ...
... are on a frictionless incline ( = 30°). The spring is compressed by xi = 0.31 m relative to its unstretched position at x = 0 and then released. What is the speed of the block when the spring is still compressed by xf = 0.14 m? ...
Resource for Final Exam Prep
... Chapter-11: Intermolecular forces: London-dispersion (due to temporary dipole, this is the only force for non-polar molecules), dipole-dipole (polar molecules), ion-dipole (ions and polar molecule), hydrogen bonding (molecule should be H attached to F, O or N and there should be at least one lone pa ...
... Chapter-11: Intermolecular forces: London-dispersion (due to temporary dipole, this is the only force for non-polar molecules), dipole-dipole (polar molecules), ion-dipole (ions and polar molecule), hydrogen bonding (molecule should be H attached to F, O or N and there should be at least one lone pa ...
3-D Shape of Molecule
... 2. Molecular Orbitals for simple diatomic molecules (H2 and He2) in H2 the 1s atomic orbitals on the two H atoms are combined into: a bonding MO -- σ1s and an antibonding MO -- σ*1s MO energy level diagram for H2 (only the bonding MO is filled): ...
... 2. Molecular Orbitals for simple diatomic molecules (H2 and He2) in H2 the 1s atomic orbitals on the two H atoms are combined into: a bonding MO -- σ1s and an antibonding MO -- σ*1s MO energy level diagram for H2 (only the bonding MO is filled): ...
Study Guide - Flagler Schools
... Be able to decipher a chemical formula as it relates to the number of atoms of each element. Be able to differentiate between a single-replacement reaction and a doublereplacement reaction. Be able to identify specific energy changes (i.e. kinetic energy to potential energy; chemical energy int ...
... Be able to decipher a chemical formula as it relates to the number of atoms of each element. Be able to differentiate between a single-replacement reaction and a doublereplacement reaction. Be able to identify specific energy changes (i.e. kinetic energy to potential energy; chemical energy int ...
iClicker PARTICIPATION Question: Development of the Modern
... Molar Mass: A connection between Macroscopic and Particulate nature of matter based on the relative masses of each atom ...
... Molar Mass: A connection between Macroscopic and Particulate nature of matter based on the relative masses of each atom ...
CHEMICAL EQUATIONS, SYMBOLS, FORULAS 7
... of the elements composing the substances. In a chemical formula, the numbers as subscripts show how many of each kind of atom are in the compound. The subscript is written to the lower right of the element symbol. If no subscript is written, only one atom of that element is part of the compound. ...
... of the elements composing the substances. In a chemical formula, the numbers as subscripts show how many of each kind of atom are in the compound. The subscript is written to the lower right of the element symbol. If no subscript is written, only one atom of that element is part of the compound. ...
PowerPoint
... Elements- simplest kind of matter Cannot be broken down All one kind of atom. Compounds are substances that can be broken down by chemical methods • When they are broken down, the pieces have completely different properties than the compound. • Made of molecules- two or more atoms ...
... Elements- simplest kind of matter Cannot be broken down All one kind of atom. Compounds are substances that can be broken down by chemical methods • When they are broken down, the pieces have completely different properties than the compound. • Made of molecules- two or more atoms ...
Chemistry Final Review 2017 1. List a set of elements
... Which substance is an ionic compound? 28. What is the total number of electrons shared in a double covalent bond? 29. What is the total number of electron pairs shared between the two atoms in an O 2 molecule? 30. As a bond between a hydrogen atom and a sulfur atom is formed, electrons are __. 31. W ...
... Which substance is an ionic compound? 28. What is the total number of electrons shared in a double covalent bond? 29. What is the total number of electron pairs shared between the two atoms in an O 2 molecule? 30. As a bond between a hydrogen atom and a sulfur atom is formed, electrons are __. 31. W ...
History of Atomic Theories (No Videos)
... – Electrons are negatively charged – The mass of an electron is very small HOWEVER – Atoms should have a (+) portion to balance the negative part - Electrons are so small that some other particles must account for mass ...
... – Electrons are negatively charged – The mass of an electron is very small HOWEVER – Atoms should have a (+) portion to balance the negative part - Electrons are so small that some other particles must account for mass ...
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... number of particles (6.02 x 1023), and would be described as one mole. For instance, the GFW of water, H2O, is 18.016 ((2 x 1.008) + 16.00 = 18.016). One mole of water would therefore have a mass of 18.016 g and contain 6.02 x 1023 molecules of water. The mole (abbreviated mol) is the SI unit for th ...
... number of particles (6.02 x 1023), and would be described as one mole. For instance, the GFW of water, H2O, is 18.016 ((2 x 1.008) + 16.00 = 18.016). One mole of water would therefore have a mass of 18.016 g and contain 6.02 x 1023 molecules of water. The mole (abbreviated mol) is the SI unit for th ...
UNIT 1 - MATTER AND CHEMICAL BONDING
... a) C-12 as basis of mole b) Avogadro’s constant c) isotopic abundance & relative atomic mass d) empirical & molecular formula e) law of definite proportions or constant composition f) quantitative relationships in a balanced equation g) limiting reagent h) actual yield, theoretical yield, percentage ...
... a) C-12 as basis of mole b) Avogadro’s constant c) isotopic abundance & relative atomic mass d) empirical & molecular formula e) law of definite proportions or constant composition f) quantitative relationships in a balanced equation g) limiting reagent h) actual yield, theoretical yield, percentage ...
KEY Midterm Exam 1 Sept.14, 1999 Chemistry 211 PAGE 1 0f 5
... (d) A balance measured the mass of a 1.000 g standard as 0.9981 g. ...
... (d) A balance measured the mass of a 1.000 g standard as 0.9981 g. ...
Final Exam Practice Problems Set 2
... Of the following, which gives the correct increasing order for atomic radius for Mg, Na, P, Si and Ar? [start with small one first] 4) Ar < P < Si < Mg < Na 5) Na < Mg < Si < P < Ar ...
... Of the following, which gives the correct increasing order for atomic radius for Mg, Na, P, Si and Ar? [start with small one first] 4) Ar < P < Si < Mg < Na 5) Na < Mg < Si < P < Ar ...
Forces and COM
... • Need to combine, or add forces, to determine net force • Newton’s third law of motion (F = ma) • Inverse dynamics – estimating net forces from the acceleration of an object • Illustrations from Kreighbaum: Figures F.4, F.5, and F.6 (pp 283-284) ...
... • Need to combine, or add forces, to determine net force • Newton’s third law of motion (F = ma) • Inverse dynamics – estimating net forces from the acceleration of an object • Illustrations from Kreighbaum: Figures F.4, F.5, and F.6 (pp 283-284) ...
Chemistry Final Exam Review 2013
... b. Decreasing concentration of the reactants c. Adding a catalyst to the reaction d. Decreasing the temperature of the reaction 66. For a reaction, increasing the temperature increases the rate of reaction. Which is the best explanation for this happening? a. The pressure increases, which in turn in ...
... b. Decreasing concentration of the reactants c. Adding a catalyst to the reaction d. Decreasing the temperature of the reaction 66. For a reaction, increasing the temperature increases the rate of reaction. Which is the best explanation for this happening? a. The pressure increases, which in turn in ...
CHEMISTRY I Final..#1..rev 4KEY
... the outer energy levels of the bonding metallic atoms are free to move from one atom to the next. Because they are free to move, these electrons are often referred to delocalized electrons and give metals ALL of the following properties EXCEPT. a. Malleable and ductile. c. Conduct heat and electrici ...
... the outer energy levels of the bonding metallic atoms are free to move from one atom to the next. Because they are free to move, these electrons are often referred to delocalized electrons and give metals ALL of the following properties EXCEPT. a. Malleable and ductile. c. Conduct heat and electrici ...
NQ-Flipper: validation and correction of asparagine/glutamine
... Ser-64 (2.90 Å). In principle the hydroxyl group can donate its proton to form a hydrogen bond with Gln-65, but then no hydrogen bond can be formed between the Ser-64 hydroxyl and the negatively charged NAP moiety. The hydroxyl oxygen of Ser-64 has an ideal hydrogen bond distance of 2.70 Å to the ...
... Ser-64 (2.90 Å). In principle the hydroxyl group can donate its proton to form a hydrogen bond with Gln-65, but then no hydrogen bond can be formed between the Ser-64 hydroxyl and the negatively charged NAP moiety. The hydroxyl oxygen of Ser-64 has an ideal hydrogen bond distance of 2.70 Å to the ...
Ch 8 Notes: Chemical Equations and Reactions
... 1. Predict the products of the double-replacement reaction and indicate the solubility of both of the products by placing the symbol "(aq)" after the soluble product and the symbol "(s)" after the insoluble product. Use the “Solubility Rules” handout (at end of notes) to determine the solubility. If ...
... 1. Predict the products of the double-replacement reaction and indicate the solubility of both of the products by placing the symbol "(aq)" after the soluble product and the symbol "(s)" after the insoluble product. Use the “Solubility Rules” handout (at end of notes) to determine the solubility. If ...