CHEM 391081: CHEM 112

Understand the fundamental distinctions between pure substances and mixtures. Unpack the definitions and real-world examples of elements, compounds, homogeneous, and heterogeneous mixtures.

Discover how to calculate the nutritional energy in a bag of chips, and learn the science behind converting excess energy into body fat.

Unravel the concept of propeller twist and its role in aviation and marine propulsion. We'll delve into the science and engineering behind this intriguing phenomenon, shedding light on its applications and significance.

Explore the properties of various molecules like diazene, hydrogen peroxide, and carbon tetrafluoride. Understand the influence of molecular shape and electronegativity on polarity. Discover why some are polar while others are nonpolar based on their structure.

Learn a practical application of chemistry and mathematics in your daily life. Whether you're a tea or coffee enthusiast, this video offers valuable insights into scale removal and maintaining your kitchen appliances.

Explore the concept of bond energy with the H-Cl bond as a prime example. Delve into the energy dynamics of bond breaking (endothermic positive ?H) versus bond formation (exothermic negative ?H). Understand how the magnitude remains consistent but signs differ based on energy absorption or release.