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... ionic. Which one is it? (c) Arrange the bond in order of increasing polarity. Q2: Draw the dipole direction(s) of the following molecules: O2, N2, HCl, HClO, H2O, CO2, CO, C2Br2, HNO3, H2CO3. ...
... ionic. Which one is it? (c) Arrange the bond in order of increasing polarity. Q2: Draw the dipole direction(s) of the following molecules: O2, N2, HCl, HClO, H2O, CO2, CO, C2Br2, HNO3, H2CO3. ...
Slide 1
... Lewis Acids and Bases We have seen that compounds such as [Co(NH3)6]3+ are complexes between ligands (Lewis bases) and a metal (Lewis acid) ...
... Lewis Acids and Bases We have seen that compounds such as [Co(NH3)6]3+ are complexes between ligands (Lewis bases) and a metal (Lewis acid) ...
Balancing Redox Equations
... 2) To assign a number to a transition metal ion (not listed in the table below) start with the overall charge, add the total number of negative charges for oxygen (if there were four as in the case of MnO4- then you would add 8 for a total of +7 for Mn), continue until all other species listed in th ...
... 2) To assign a number to a transition metal ion (not listed in the table below) start with the overall charge, add the total number of negative charges for oxygen (if there were four as in the case of MnO4- then you would add 8 for a total of +7 for Mn), continue until all other species listed in th ...
Magnetism
... a and b are two different wave functions. Two electrons cannot have the same wave functions a = b , because would be zero If the spins are the same, the spatial wave functions have to be different. That causes the electrons with parallel spins to be farther apart. This is the mathematical ver ...
... a and b are two different wave functions. Two electrons cannot have the same wave functions a = b , because would be zero If the spins are the same, the spatial wave functions have to be different. That causes the electrons with parallel spins to be farther apart. This is the mathematical ver ...
Grade XII Foreign SET 2 Chemistry (Theory)
... (i) Nitrogen is chemically less reactive. This is because of the high stability of its molecule, N2. In N2, the two nitrogen atoms form a triple bond. This triple bond has very high bond strength, which is very difficult to break. It is because of nitrogen’s small size that it is able to form p– p ...
... (i) Nitrogen is chemically less reactive. This is because of the high stability of its molecule, N2. In N2, the two nitrogen atoms form a triple bond. This triple bond has very high bond strength, which is very difficult to break. It is because of nitrogen’s small size that it is able to form p– p ...
CHEMISTRY NOTES – CHAPTERS 20 AND 21
... Svante Arrhenius (Sweden, 1887) proposed that acids are substance which yield hydrogen ions (H+) in aqueous solution and bases are substances which yield hydroxide (OH-) ions in aqueous solution. Examples of Arrhenius acids are hydrochloric acid (HCl), sulfuric acid (H2SO4), and phosphoric acid (H3P ...
... Svante Arrhenius (Sweden, 1887) proposed that acids are substance which yield hydrogen ions (H+) in aqueous solution and bases are substances which yield hydroxide (OH-) ions in aqueous solution. Examples of Arrhenius acids are hydrochloric acid (HCl), sulfuric acid (H2SO4), and phosphoric acid (H3P ...
x - Angelfire
... •Electrostatic field due to the neighbours; the crystal field. • Stark Effect: electric-field acting on ion. • Some of the 5-fold degeneracy is lifted. Cubic crystal: less symmetric than a spherical ion. → d orbitals split into two bands: eg and t2g. • t2g are localised; the eg orbitals are importan ...
... •Electrostatic field due to the neighbours; the crystal field. • Stark Effect: electric-field acting on ion. • Some of the 5-fold degeneracy is lifted. Cubic crystal: less symmetric than a spherical ion. → d orbitals split into two bands: eg and t2g. • t2g are localised; the eg orbitals are importan ...
makeup6
... 10. Which of the following molecules contains a central atom which is sp2 hybridized? (A) H2SO4 (B) H2CO3 (C) ICl2 (D) H3CCH3 11. Which of the following molecules has at least one non-bonding pair of electrons on the central atom? (A) CHCl3 (B) HCN (C) H2CO (D) O3 12. Which of the following statemen ...
... 10. Which of the following molecules contains a central atom which is sp2 hybridized? (A) H2SO4 (B) H2CO3 (C) ICl2 (D) H3CCH3 11. Which of the following molecules has at least one non-bonding pair of electrons on the central atom? (A) CHCl3 (B) HCN (C) H2CO (D) O3 12. Which of the following statemen ...
molecular modeling and electronic structure calculations
... What are the major differences between the input geometry, based on average bond lengths and VSEPR, and the optimized geometry (aka: How do bond lengths, angles, etc. change from what you were expecting)? What accounts for these differences? PROBLEM 3: Ozone Oxygen is a paramagnetic compound, which ...
... What are the major differences between the input geometry, based on average bond lengths and VSEPR, and the optimized geometry (aka: How do bond lengths, angles, etc. change from what you were expecting)? What accounts for these differences? PROBLEM 3: Ozone Oxygen is a paramagnetic compound, which ...
Chapter 1 Chemistry: the study of the composition of matter and the
... Hypothesis: proposed explanation for what is observed -Accuracy: How close your values are to the ‘true value’ Theory: a broad and extensively tested explanation as to why experiments ...
... Hypothesis: proposed explanation for what is observed -Accuracy: How close your values are to the ‘true value’ Theory: a broad and extensively tested explanation as to why experiments ...
Notes
... Double Replacement (metathesis) Two compounds react to form two new compounds. All double replacement reactions must have a "driving force" that removes a pair of ions from solution. Ions keep their same charges as reactants and products. Formation of a precipitate: A precipitate is an insoluble su ...
... Double Replacement (metathesis) Two compounds react to form two new compounds. All double replacement reactions must have a "driving force" that removes a pair of ions from solution. Ions keep their same charges as reactants and products. Formation of a precipitate: A precipitate is an insoluble su ...
experiment 18: flame tests for metals
... Fireworks capture our attention with their beautiful colors and controlled explosions, both of which link directly to fundamental concepts taught in basic chemistry classes. The media resources featured in this lesson provide a visually rich way to tie together spectral chemistry, combustion, and th ...
... Fireworks capture our attention with their beautiful colors and controlled explosions, both of which link directly to fundamental concepts taught in basic chemistry classes. The media resources featured in this lesson provide a visually rich way to tie together spectral chemistry, combustion, and th ...
PPT: Chemical Reactions Review
... Balancing by Half-Reactions *in basic solution 1. Assign oxidation states. 2. Write separate half-reactions for the reduction/oxidation reactions. 3. Balance all the atoms EXCEPT O and H. 4. Balance the oxygen by adding water (H2O). 5. Balance the hydrogen by adding H+. 6. Balance the charge by add ...
... Balancing by Half-Reactions *in basic solution 1. Assign oxidation states. 2. Write separate half-reactions for the reduction/oxidation reactions. 3. Balance all the atoms EXCEPT O and H. 4. Balance the oxygen by adding water (H2O). 5. Balance the hydrogen by adding H+. 6. Balance the charge by add ...
Supplemental Informaton
... the theoretical Octet electrons (Oe) minus the total valence electrons (TVe). Oe is the theoretical number of electrons necessary for each atom in the structure to obtain a Noble Gas electron configuration, while TVe is the actual number of total valence electron for each atom in the structure. ...
... the theoretical Octet electrons (Oe) minus the total valence electrons (TVe). Oe is the theoretical number of electrons necessary for each atom in the structure to obtain a Noble Gas electron configuration, while TVe is the actual number of total valence electron for each atom in the structure. ...
Exam2
... Ethylene glycol is the primary component in antifreeze. How many grams ofethylene glycol, C2H4(OH)2 are in 394 mL of a 9.087 M solution of antifreeze? (molar mass C2H4(OH)2 = 62 g/mol) a. 222 g b. 43.7 g c. 3.58 g d. 2.69 g e. 0.157 g Calculate the number of oxygen atoms in 45.0 g of Co2(SO4)3 (mola ...
... Ethylene glycol is the primary component in antifreeze. How many grams ofethylene glycol, C2H4(OH)2 are in 394 mL of a 9.087 M solution of antifreeze? (molar mass C2H4(OH)2 = 62 g/mol) a. 222 g b. 43.7 g c. 3.58 g d. 2.69 g e. 0.157 g Calculate the number of oxygen atoms in 45.0 g of Co2(SO4)3 (mola ...
Lab 1
... I hope this Helps!? If Not…SEE Me or ask someone for help! Perform the indicated mathematical operation. Express the answer in decimal form (not scientific notation) with the correct number of significant digits. a. (4.65 105) (9.5 102) ...
... I hope this Helps!? If Not…SEE Me or ask someone for help! Perform the indicated mathematical operation. Express the answer in decimal form (not scientific notation) with the correct number of significant digits. a. (4.65 105) (9.5 102) ...
Exam 3 Review Key
... c) Mercury, in both its +1 and +2 oxidation states, can form inorganic salts. One such salt, mercury(II) chloride, is highly toxic. It has a solubility of just above 6% at room temperature. The body must excrete mercury in the urine to get rid of it, but that’s difficult to do when it’s an insoluble ...
... c) Mercury, in both its +1 and +2 oxidation states, can form inorganic salts. One such salt, mercury(II) chloride, is highly toxic. It has a solubility of just above 6% at room temperature. The body must excrete mercury in the urine to get rid of it, but that’s difficult to do when it’s an insoluble ...
No Slide Title
... Write the Lewis structure of the carbonate ion (CO32-). Step 1 – C is less electronegative than O, put C in center Step 2 – Count valence electrons C - 4 (2s22p2) and O - 6 (2s22p4) -2 charge – 2e4 + (3 x 6) + 2 = 24 valence electrons Step 3 – Draw single bonds between C and O atoms and complete oc ...
... Write the Lewis structure of the carbonate ion (CO32-). Step 1 – C is less electronegative than O, put C in center Step 2 – Count valence electrons C - 4 (2s22p2) and O - 6 (2s22p4) -2 charge – 2e4 + (3 x 6) + 2 = 24 valence electrons Step 3 – Draw single bonds between C and O atoms and complete oc ...
Answers to NHSCE 2002 Part A Page 1
... 6. The Pan-Canadian protocol is not very clear about the depth to which organic chemistry should be studied at high school, and different provinces appear to have interpreted this aspect of the protocol in different ways. It is, however, quite clear that students should be able to recognize some of ...
... 6. The Pan-Canadian protocol is not very clear about the depth to which organic chemistry should be studied at high school, and different provinces appear to have interpreted this aspect of the protocol in different ways. It is, however, quite clear that students should be able to recognize some of ...
Condition - Future Website of mrbentley2
... 1) Determine the correct Lewis structure for the molecule. If it is a diatomic (has only two atoms) it is linear. If it has 3 or more atoms continue with step 2. 2) Count the number of electron groups around the central atom. A group of electrons is a bond, a nonbonding electron pair, or occasionall ...
... 1) Determine the correct Lewis structure for the molecule. If it is a diatomic (has only two atoms) it is linear. If it has 3 or more atoms continue with step 2. 2) Count the number of electron groups around the central atom. A group of electrons is a bond, a nonbonding electron pair, or occasionall ...
Matter and Energy
... Properties of Matter Practice 1. Describe each of the following properties as physical or chemical: a. neon is a color gas at room temperature b. apple slices turn brown when exposed to air c. phosphorus will ignite when exposed to air d. at room temperature, mercury is a liquid e. propane gas is c ...
... Properties of Matter Practice 1. Describe each of the following properties as physical or chemical: a. neon is a color gas at room temperature b. apple slices turn brown when exposed to air c. phosphorus will ignite when exposed to air d. at room temperature, mercury is a liquid e. propane gas is c ...
u11_tqs
... 25. According to Bronsted-Lowry, bases are H+-ion acceptors and acids are H+-ion donors. ...
... 25. According to Bronsted-Lowry, bases are H+-ion acceptors and acids are H+-ion donors. ...
CHM100PracticeExam2
... You may use a scientific calculator. Make sure that you have written your name legibly on the scantron form. Circle bubbles on the scantron form as best as you can. Answer all 50 questions. If you cannot find an answer on the exam that you expected to see then answer the question as best as you can. ...
... You may use a scientific calculator. Make sure that you have written your name legibly on the scantron form. Circle bubbles on the scantron form as best as you can. Answer all 50 questions. If you cannot find an answer on the exam that you expected to see then answer the question as best as you can. ...
Balancing RedOx reactions handout
... 1. Determine the oxidation numbers for all atoms in the reaction. 2. Determine which atom is being oxidized and which is being reduced. 3. Write a half reaction for the reduction process (addition of electrons…electrons added to the left side). 4. Write a half reaction for the oxidation process (los ...
... 1. Determine the oxidation numbers for all atoms in the reaction. 2. Determine which atom is being oxidized and which is being reduced. 3. Write a half reaction for the reduction process (addition of electrons…electrons added to the left side). 4. Write a half reaction for the oxidation process (los ...