SolidWorks Teacher Guide Lesson2 School’s Name Teacher’s Name Date.
Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through...
-
Upload
jemimah-gordon -
Category
Documents
-
view
214 -
download
0
Transcript of Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through...
![Page 1: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/1.jpg)
Chapter One Test (Wednesday October 3rd, at 1st Period)
Study-guide available online(through school’s website, under My Teacher’s page)
![Page 2: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/2.jpg)
Nomenclature
Valence
Crossover rule
Polyatomic ions
Writing formulas
Naming compounds
![Page 3: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/3.jpg)
Nomenclature
Valence charge:
Group I II III IV V VI VII VIII
Most Probable Ion
E+
(Li+)E2+
(Be2+)E3+
(Al3+)E4+ or E4-
(C4+ or C4-)E3-
(N3-)E2-
(O2-)E-
(F-)None
![Page 4: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/4.jpg)
Nomenclature
Valence charge calculation examples:
Element Symbol Family Valence charge Representation
Silicon Si IV 4+ or 4- Si4+ or Si4-
Chlorine Cl VII 1- Cl-
Potassium K I 1+ K+
Phosphorous P V 3- P3-
Magnesium Mg II 2+ Mg2+
![Page 5: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/5.jpg)
Nomenclature
Valence exceptions
Sometimes atoms will combine in ways that seem to defy the rules we have learned. Thus, usual electron acceptors (non-metals) can lose some or all of the electrons of the valence shell if they bond with a more electronegative atom
For example:P can be P3- when is bonded to Hydrogen to form PH3P can also be P3+ when bonded with Halogens or Oxygen (e.g. PCl3)
C can be C2+ (e.g. CO) or can also be C2- w(e.g. CaC)
![Page 6: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/6.jpg)
Nomenclature
Crossover rule:
_Molecules are neutral (no charge)
_Valence charges must be balanced
_Number of bonds account for neutrality
For example:
Ammonia (NH3)
One N (3-) combines with one H (1+) and the resulting charge is (2-) Two more hydrogen atoms are needed to achieve neutrality The formula is then (NH3) for
![Page 7: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/7.jpg)
Nomenclature
Crossover rule:
_Molecules are neutral (no charge)
_Valence charges must be balanced
_Number of bonds account for neutrality
Second example:
Dinitrogen trioxide Two N (each with 3+) combine with one O (2-) and the resulting charge is
(4+) Two more oxygen atoms are needed to achieve neutrality The formula is then (N2O3) for
![Page 8: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/8.jpg)
Nomenclature
Learning Activity (Crossover rule)
Provide the right formula for the combination of:
1. Magnesium and Hydrogen
2. Calcium and Sulphur
3. Aluminum and Oxygen
![Page 9: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/9.jpg)
![Page 10: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/10.jpg)
Nomenclature
Learning Activity (Crossover rule with Polyatomic ions)
Provide the right formula for the combination of:
1. Aluminum and Carbonate
2. Potassium and Dichromate
3. Beryllium and Manganate
![Page 11: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/11.jpg)
![Page 12: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/12.jpg)
Closure and Assessment
1. Name the compounds in the handout
2. Provide the correct formula for the others
Nomenclature’s knowledge will be taken from granted after this lesson…
![Page 13: Chapter One Test (Wednesday October 3 rd, at 1 st Period) Study-guide available online (through school’s website, under My Teacher’s page)](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d175503460f949ecf7e/html5/thumbnails/13.jpg)
Chapter One Test (Wednesday October 3rd, at 1st Period)
Study-guide available online(through school’s website, under My Teacher’s page)