Students:
This VIDEO provides information on topics relevant to Sections 7.1 and 7.2 of your text: properties of solids, liquids and gases; converting units of pressure, energy and temperature; kinetic molecular theory, phase changes, intermolecular forces and gas laws.
Students:
In this VIDEO I demonstrate the features of the 'Density Laboratory' GIZMO, and also provide some background context:
1) how water is the standard for density at 1 g / mL
2) how the metric system allows you to instantly convert from a unit of liquid volume (mL) to solid volume (cubic centimeters)
3) how Archimedes discovered the use of displacement to estimate the volume of irregular solids.
As a reminder, this and other items assigned before the Thanksgiving holiday are due on Monday, Nov. 30th and are PAST DUE the following day.
There are only 6-7 days of instruction remaining in the semester, so NOW is the time to get your work in, and push HARD to the end of the year.
Students:
This VIDEO models the technique of unit conversion with units of pressure (atmospheres, millimeters of mercury, pascals and kilopascals) and units of energy (joules, kilojoules, calories and kilocalories).
This is the technique used in your current assignment, 'HW Conv Pressure and Temperature', due on Monday, Nov. 30th.
This is the same technique previously modeled in assignments like:
'Unit Conversion Practice' (8/28)
'Unit Conversion Problems' (9/1)
'Grams to Moles' (9/17)
'Energy and Conversions' (9/21)
'SI Units in Chemistry' (10/7)
In other words, nothing new here, just the same technique--but some of the units are new. Mr. Hatfield hopes very much that those of you who failed to attempt most or all of the previous work will attempt this math now, as it will be used throughout the rest of the course.
Students:
In this VIDEO, Mr. Hatfield reviews material from sections 6.3-6.5 of our text on covalent bonding.
Some of the topics covered: the octet rule with covalent compounds, nomenclature (naming rules) for binary covalent compounds, electronegativity and intermolecular forces
STUDENT SUPPORT:
As a reminder, Mr. Hatfield will continue to hold 'ofice hours' (STUDENT SUPPORT), between 1:30 and 2:30 PM every day this week during Thanksgiving vacation, including Thanksgiving.
SATURDAY SCHOOL:
Mr. Hatfield will offer another 'Saturday School' opportunity based on work assigned between Oct. 22nd and Nov. 20th, on Saturday, December 5th. As with the previous opportunity, which is now closed, this will involve a 100-point extra-credit packet.
DEADLINES:
Students who are working on completing work assigned BEFORE the Unit Test on October 20th must send their work to Mr. Hatfield BEFORE Monday, Nov. 30th, when class meetings resume.
Work assigned between October 22nd and November 20th is due ON Monday, Nov. 30th, and will not be accepted after Friday, December 4th.
Students:
While it might not seem like it, we are nearer the end of the semester (Dec. 18th) than you might think. This is the district's calendar for the final month:
By Nov. 30th, we will have taken about 50 grades totalling over 600 points. At that point, there will be only about 400 points remaining in the course, including a 2nd Saturday School, which will take place on Saturday, Dec. 5th.
In this VIDEO, Mr. Hatfield demonstrates how to use the periodic table and a list of common polyatomic ions to name or predict the formulas of ionic compounds, including those from the transition metals.
This is meant to accompany a 50-point assignment that has many practice problems.
Students:
This VIDEO, is the second based on the Periodic Table, following an earlier video drawn from Section 5.1 of our text, called 'The Periodic Table (An Overview).'
This second video, called 'The Periodic Table (Groups, Trends, Ions) is based on Sections 5.2, 5.3 and 6.1 of your textbook.
A special emphasis is placed on recognizing the relationship between periodic trends and electron configuration. Other topics: noble gas configuration, octet rule, electronegativity and ionic compounds.
In this VIDEO, Mr. Hatfield demonstrates how to use an online simulation to collect information on ionic bonding (between a metal and a non-metal) and covalent bonding (between two non-metals).
This information includes: differences in electronegativity and the number of valence electrons in the neutral atoms involved.
Mr. Hatfield then shows how to express this information within tables of a Word document, which should be submitted via email as a class Assignment.
In this VIDEO, Mr. Hatfield models for his students how to use the Periodic Trends GIZMO, which will collect data on three periodic trends: atomic radius, ionization energy and electron affinity.
Students:
This VIDEO contains material from Section 5.1 of your text. In the 19th century, chemists compared the properties of known elements, in order to sort them into groups and (it was hoped) to find patterns: regularities, that might provide clues as to the internal organization of the elements.
In this 12-minute video, we will review some of the facts that prompted the development of the first periodic tables, and then discuss the basic features of the modern table: groups and periods, 'the stair step line', metals, non-metals and metalloids.
