Evan Silberstein

 (69)
United States - New York - Nanuet
Evan Silberstein
3.9
174 votes
Visit www.evanschemistrycorner.com for free resources to go with my Power Points. And now, flip the classroom with video lessons. More videos will be coming soon.
 
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By Evan Silberstein
Calculating percent yield is an advanced topic that draws on knowledge of stoichiometry and limiting reagents. It is a practical skill that relates to real world chemical manufacturing. This Powerpoint presentation explains what percent yield is and
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.31 MB)
By Evan Silberstein
If you're a manufacturer, you want to produce your product fast. The same is true for chemical products. What determines how fast a chemical reaction occurs? How can a chemical reaction be hastened? This PowerPoint presentation examines the factors
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (1.38 MB)
By Evan Silberstein
The hydrogens in a water molecule are attached to the oxygen by polar covalent bonds. What makes the water molecules stick to each other to form a cohesive liquid? There are no more unpaired or lose electrons to aid in bonding. That's what makes the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (2.13 MB)
By Evan Silberstein
The temperature of a substance does not change during a phase change. It comes as a surprise to many students that the melting point of ice and the freezing point of water are the same. This Powerpoint presentation explains why there is no
Subjects:
Chemistry
Grades:
11th, 12th
Types:
PowerPoint Presentations
$2.00
3 ratings
3.9
Digital Download PPSX (5.82 MB)
By Evan Silberstein
This Power Point presentation clarifies the difference between solutions and mechanical mixtures, and describes the types of mechanical mixtures. Support materials including worksheets are available free of charge on my web site at
Subjects:
Chemistry
Grades:
10th, 11th
Types:
Lectures, PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.14 MB)
By Evan Silberstein
With Thomson's discovery of neon atoms with differing masses, Dalton's postulate that all atoms of an element are identical and have the same mass faded away. This PowerPoint show, examines the history from Dalton to Chadwick regarding atomic mass,
Subjects:
Chemistry
Grades:
10th, 11th, 12th
Types:
Lectures, PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.19 MB)
By Evan Silberstein
The Bohr model may be flawed, but distilling atomic structure down to the principal energy levels, and ignoring the rest of the details regarding the electron distribution does a great job of explaining bonding and bonding ratios, especially for
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.45 MB)
By Evan Silberstein
When radioactive substances decay, new substances form. During the process mass and charge are conserved. This Powerpoint presentation explains how to write and interpret nuclear equations showing the transmutation of one element into another. Free
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.50 MB)
By Evan Silberstein
The empirical formula of a substance can be determined from its percent composition. This Powerpoint presentation explains why this is logically so. It also teaches step by step how to convert percentages to masses and masses to moles in order to
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
3 ratings
4.0
Digital Download PPSX (0.12 MB)
By Evan Silberstein
Mass-Mass problems take stoichiometry to the next level beyond mole-mole problems. In this Powerpoint presentation, the student is shown how to calculate the stoichiometric mass of any substance involved in a reaction from the mass of any other
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
not yet rated
Digital Download PPSX (1.02 MB)
By Evan Silberstein
Hess's Law is based on the concept that the enthalpy change for a chemical reaction is independent of the pathway of the chemical reaction. This makes it possible to calculate the energy change of a reaction from the heats of formation of the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.75 MB)
By Evan Silberstein
Increasing the concentration of chemical reactants increases the reaction rate. But if the concentration of a reactant is doubled, does the reaction rate double, or might it quadruple? That depends on the reaction mechanism. Scientists vary the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.71 MB)
By Evan Silberstein
The elements in the Periodic Table are arranged in increasing order of atomic number or nuclear charge. As a result, the pull on the electrons keeps increasing moving left to right. When a new shell is added we start over again at the left. The
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
not yet rated
Digital Download PPSX (1.89 MB)
By Evan Silberstein
Polar molecules have an unequal charge distribution. The only way that can happen is for a molecule to have polar bonds AND an asymmetrical shape. Bond type is determined by electronegativity difference. Charge distribution is a function of shape.
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.81 MB)
By Evan Silberstein
Most people think of acids and bases as opposites, but what is opposite about them? The key to understanding acids and bases is water. Water ionizes to produce a small but equal amount of hydronium and hydroxide ions. Addition of acid causes the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.69 MB)
By Evan Silberstein
How much elemental iron comes from a 325 mg tablet of iron II sulfate heptahydrate? This important and practical question can be answered based on the percentage of iron in the compound. This Powerpoint presentation builds on the skill of
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.13 MB)
By Evan Silberstein
Boiling is not simply a temperature phenomenon. It is primarily related to vapor pressure which is, of course, influenced by temperature. This Powerpoint presentation explains what vapor pressure is. The presentation explores the relationship
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
not yet rated
Digital Download PPSX (1.02 MB)
By Evan Silberstein
The Combined Gas Law follows from Boyle's Law and Charles' Law. This Powerpoint presentation examines the work of Boyle and Charles. It explains what happens to the volume of a gas at constant temperature as pressure changes (Boyle's Law), and what
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.98 MB)
By Evan Silberstein
Nature favors low energy, yet wood is stable even though it gives off energy when it burns. This PowerPoint presentation explains this apparent paradox by examining the energy profile of a chemical reaction. An analogy is made between an exothermic
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (1.31 MB)
By Evan Silberstein
The ideal gas law relates the temperature, pressure, and volume of a gas to the number of moles of the gas. This opens the door to mole-mole, mole-mass calculations typical of stoichiometry, and enables any of the variables in the ideal gas law to
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
3 ratings
4.0
Digital Download PPSX (0.53 MB)
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174 total vote(s)
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TEACHING EXPERIENCE

Taught biology, chemistry, and general science in the East Ramapo Central school District, Spring Valley, NY from 1970 to 2003. Teach chemistry at the Frisch school, Paramus, NJ since 2003

MY TEACHING STYLE

I teach using the smart board and power point presentations. My lessons depend heavily on questioning and student responses. Lessons generally include activities and/or demonstrations with work sheets for follow up. All of my work sheets correlated to my power point presentations, and are available free of charge on my web site: http://www.evanschemistrycorner.com .

HONORS/AWARDS/SHINING TEACHER MOMENT

Yet to be added

MY OWN EDUCATIONAL HISTORY

B.S.: 1970 SUNY at Stony Brook M.S.: 1973 SUNY at New Paltz Post Graduate: Hebrew University, Jerusalem NYU, New York, NY Iona College, Rockland Campus, Orangeburg, NY

ADDITIONAL BIOGRAPHICAL INFORMATION

Writer and contributing writer for D.C. Heath and Prentice Hall science texts and ancillaries. I also now have a video course, "The Mathematics of Chemistry," at http://www.lernsys.com/en/the-mathematics-of-chemistry .

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