PreparED Study Materials
Notes
Study Guides
Videos
CS?, SO?, CH?, & CH?Cl: Are They Polar or Nonpolar Molecules?
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Explore the polarity of Carbon disulfide, Sulfur dioxide, Methane, and Chloromethane. Learn how molecular shape influences electron distribution. Understand which molecules possess a net dipole moment and which ones don't.
Electron Configurations: Zn Cu Zr & Fe Transition Metals Explained!
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Unravel electron configurations for transition metals including zinc copper zirconium and iron. Understand how atomic number influences electron arrangement based on the Pauli exclusion principle Hund's rule and the Aufbau principle. Decode the configurations of each metal with clarity.
Chips Nutritional Energy and Body Fat Conversion
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Discover how to calculate the nutritional energy in a bag of chips, and learn the science behind converting excess energy into body fat.
Understanding Average Speed in Kinetic Molecular Theory
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The kinetic molecular theory of gases describes the random motion and speed distribution of gas molecules in a container, and when considering various statements about the average speeds of these molecules, it's important to understand how they behave under different conditions.
Predicting Precipitates: Al(NO?)? & NaOH Reaction Explained
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Unlock the secrets of precipitation reactions as we mix Aluminium nitrate and Sodium hydroxide. Discover how Al(NO?)? and NaOH interact forming the insoluble Aluminium hydroxide Al(OH)?. Break down the net ionic equation to highlight only the active participants.
Glassware Drying with Acetone: The Science Behind It
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This discussion delves into the use of acetone as a solvent for removing water from laboratory glassware, exploring the science behind its effectiveness and the role of hydrogen bonding in facilitating rapid evaporation.
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