PreparED Study Materials
Notes
Videos
Positron Emission Nuclear Equations: Co-55, Na-22, F-18
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Learn how to write nuclear equations for positron emission with Co-55, Na-22, and F-18. Explore the fascinating world of nuclear reactions.
Identify the 3' and 5' ends of the DNA segment AGTCAT
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video discusses the fundamental concept of DNA structure, focusing on the identification of the 3' and 5' ends of a DNA segment, specifically highlighting the sequence AGTCAT and its importance in understanding DNA strand direction for processes like replication and transcription.
What makes bubbles when water boils?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
When water boils, bubbles rise to the surface, but what's in these bubbles? Let's evaluate the options. Option d, water vapor, is correct; the bubbles during boiling are primarily composed of water vapor, the gaseous state of water.
Glassware Drying with Acetone: The Science Behind It
Want To Learn More? To watch the entire video and ALL of the videos in the series:
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.
Vaporization vs. Condensation: Heat Dynamics in Phase Transitions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Unravel the science behind endothermic and exothermic processes by studying vaporization and condensation. Grasp the molecular changes involved and understand the role of heat in these transformations. A comprehensive look into why vaporization requires heat, while condensation releases it.
Shapes & Forces: How Molecule Structure Affects Bonds
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Unveil the correlation between molecular shapes and their respective intermolecular forces. Delve into the specifics of nitrogen trichloride, ammonia, silane, and carbon tetrachloride, highlighting their unique force interactions based on polarity.