SILENTLY 1.Begin your Do Now 2.Write down tonight s homework: Unit 9 Quiz Corrections. AIM: How do we answer OR questions?
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1 Welcome to Chemistry Regents Prep! SILENTLY 1.Begin your Do Now 2.Write down tonight s homework: Unit 9 Quiz Corrections Binder Chemistry Reference Table HW for checking: Thanksgiving Break Quiz Corrections Notes: AIM DO NOW (Seat) AIM: How do we answer OR questions? AGENDA: Do now [10] In Terms of Review [35] Quiz Passback [1] Quiz Corrections [4] Backpack IMPORTANT DATES: Mandatory Mock-Regents is THIS Saturday, December 13 th. All missing classwork and homework from Quarter 2 is due Friday, January 16 th.
2 DO NOW: 1. A neutron has a charge of (1) +1 (3) 0 (2) +2 (4) 1 2. Which particle has the least mass? (1) alpha particle (3) neutron (2) beta particle (4) proton 3. A sample of matter must be copper if (1) each atom in the sample has 29 protons (2) atoms in the sample react with oxygen (3) the sample melts at 1768 K (4) the sample can conduct electricity 4. In the electron cloud model of the atom, an orbital is defined as the most probable (1) charge of an electron (2) conductivity of an electron (3) location of an electron (4) mass of an electron 5. The elements on the Periodic Table are arranged in order of increasing (1) atomic number (2) mass number (3) number of isotopes (4) number of moles
3 DO NOW: 6. Which element has the highest melting point? (1) tantalum (2) rhenium (3) osmium (4) hafnium 7. In a chemical reaction, there is conservation of (1) energy, volume, and mass (2) energy, volume, and charge (3) mass, charge, and energy (4) mass, charge, and volume 8. At STP, both diamond and graphite are solids composed of carbon atoms. These solids have (1) the same crystal structure and the same properties (2) the same crystal structure and different properties (3) different crystal structures and the same properties (4) different crystal structures and different properties 9. The gram-formula mass of a compound is 48 grams. The mass of 1.0 mole of this compound is (1) 1.0 g (2) 4.8 g (3) 48 g (4) 480 g
4 Annotation Strategies Underline the word after in terms of Write down anything you can remember (annotate)
5 Take notes FAST! Topic #1: Polarity CHARGE SYMMETRICAL, charge is distributed evenly = nonpolar Ex. CH 4, H 2 ASYMMETRICAL, charge is uneven = polar Ex. HCl, NH 3, H 2 O Complete #1 from your In Terms Of worksheet on a sheet of loose leaf!
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7 Topic #2: Periodic Trends I Atomic radius increases going down a group and decreases going across a period Down a group there are more electron shells Across a period, the protons pull the electrons in tighter! Complete #2 from your In Terms Of worksheet on a sheet of loose leaf!
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9 Topic #3: Intermolecular Forces Intermolecular = interactions between molecules Higher boiling point means harder to get molecules apart to be a gas Complete #3 from your In Terms Of worksheet on a sheet of loose leaf!
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11 Topic #4: Bonding Ionic = Covalent = Complete #4 from your In Terms Of worksheet on a sheet of loose leaf!
12 Topic #4: Bonding Octet rule = Complete #5 from your In Terms Of worksheet on a sheet of loose leaf!
13 Topic #5: The Atom OPPOSITES ATTRACT so P wants E Alpha particles are POSITIVE so they don t want to be around what part of the atom?! Complete #6 from your In Terms Of worksheet on a sheet of loose leaf!
14 Topic #2: Periodic Trends I Metals have a SEA OF ELECTRONS which makes them very good conductors of ELECTRICITY! Complete #8 from your In Terms Of worksheet on a sheet of loose leaf!
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16 Topic #6: Solutions TABLE G SATURATED = on the line Unsaturated = below, you can dissolve MORE Supersaturated = above, TOO much it will be left on the bottom Complete #9 from your In Terms Of worksheet on a sheet of loose leaf!
17 Topic #4/2: Bonding and Periodic Trends When something forms a POSTIVE ion, it is LOSING electrons (losing negative) so the protons pull it in TIGHTER the radius decreases Complete #10 from your In Terms Of worksheet on a sheet of loose leaf!
18 We will review #11 on Tuesday next week (save this!)
19 Topic #2: Periodic Trends I Activity SERIES: USE TABLE J If a metal is HIGHER, it will replace or react with any metal BELOW it! Would Ca replace Cr? Would Fe replace K? What element could replace Rb? Complete #12 from your In Terms Of worksheet on a sheet of loose leaf!
20 Remainder of Class Complete test corrections on Unit 9 Quiz
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