PreparED Study Materials
CH 490: Biochem Structure & Function
School: Portland State University
Number of Notes and Study Guides Available: 0
Videos
Balancing the Photosynthesis Equation: CO?, H?O to Glucose & O?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the balanced chemical equation for photosynthesis, where CO? and H?O produce glucose and O?. Uncover the step-by-step breakdown of the equation, ensuring atom balance. Grasp a clear understanding of this vital process in plant biology.
Drawing Lewis Structures for Potassium, Barium, Aluminum, and Bromine
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
We explore Lewis structures, which depict atom bonding and lone electron pairs. We create Lewis structures for potassium, barium, aluminum, and bromine by using group numbers in the periodic table to determine their valence electrons.
Chemical Formulas for Barium Hydroxide, Magnesium Sulfite, and More
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video discusses the process of writing chemical formulas for different compounds, providing details on the types and charges of ions involved in each compound's composition. The video concludes with the chemical formulas for barium hydroxide, magnesium sulfite, calcium carbonate, ammonium sulfate, and lithium hydrogen carbonate.
Identifying Incorrect Ground-State Electron Configurations and Providi
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video delves into the significance of electron configurations in understanding an atom's chemical behavior. It examines and corrects inaccuracies in the electron configurations of Aluminium (Al), Boron (B), and Fluorine (F). For instance, the electron configuration for Aluminium is initially presented with an incorrect number of electrons in the 2p subshell, stressing the importance of adhering to the rules of electron configuration for precise atomic representation.
Electrons in outer shell of: Potassium, Calcium, Aluminum
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video explains the importance of the number of valence electrons in an element's chemical behavior and demonstrates how to determine the valence electrons for potassium, calcium, and aluminum based on their positions in the periodic table. Valence electrons dictate an element's reactivity with other elements, making this knowledge essential for understanding chemical reactions.
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.


















