PreparED Study Materials
Notes
Videos
Differential DNA Damage Responses in Prokaryotes and Eukaryotes
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore unique strategies employed by prokaryotes and discover if they possess exclusive mechanisms for handling extreme DNA damage that elude eukaryotes."
Chips Nutritional Energy and Body Fat Conversion
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover how to calculate the nutritional energy in a bag of chips, and learn the science behind converting excess energy into body fat.
Disulfur Decafluoride Disproportionation & Sulfur Oxidation States
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video explains the disproportionation reaction of disulfur decafluoride at 150°C. It teaches you to write a balanced equation for this reaction and give the oxidation state of S in each compound.
Reaction Unveiled: From Nitrogen Dioxide & Hydrogen to Ammonia & Water
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the intriguing reaction of gaseous Nitrogen Dioxide and Hydrogen, resulting in the formation of Ammonia and Water. Grasp the significance of balanced chemical equations in respecting the law of conservation of mass. Dive into the properties and characteristics of each involved compound.
Molecular Lewis Structures for CH?, CO?, H?Se, and NH?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this video, we demonstrate the creation of Lewis structures for methane, carbon dioxide, hydrogen selenide, and ammonia, highlighting the arrangement of atoms and bonds in each molecule. The video emphasizes the importance of Lewis structures in visualizing atomic bonding and the presence of lone electron pairs.
Identifying Redox Reactions & Agents: Four Chemistry Examples
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore oxidation and reduction processes across four chemical reactions differentiating between acid-base and redox activities. Highlighting key substances and their roles in each reaction.




