CHEM 3141: Methods of Chemical Research

Discover the simple yet essential method for counting the number of oxygen atoms in different molecular sets, including molecules and ions.

Explore the differences between physical and chemical properties in substances. Learn some fundamentals of chemistry and understand how substances interact and change.

This video tackles the classification of boiling water as either a physical or chemical change, examining the provided options. We conclude that boiling is a physical change, as the water's chemical composition remains the same during the transition from liquid to gas.

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.

Compare the acidity of chromium trioxide (CrO?) and chromium (II) oxide (CrO) in water. Chromium trioxide forms strong chromic acid increasing hydronium ions, while chromium (II) oxide has weaker oxidizing properties, resulting in a less acidic solution.

Join us as we delve into the intriguing world of genetic coding and discover how the concept of wobble accounts for variations in codons encoding a single amino acid.