2019 Science (Chemistry) Practical O level - Part 1

This is how Ms Selena will tackle the 2019 O Level Science Practical paper (Chemistry). This paper is unique as there are no unknown substances to discover, but the unknowns are in the form of gases. Watch the GCE O Level Science (Chemistry) Practical O level - Part 2 Video:    • 2019 Science (Chemistry) Practical O level...   Watch GCE O Level Science (Physics) Practical O level - Part 1 Video:    • 2019 Science (Physics) Practical O level -...   Project Lightboard online learning videos and quizzes: https://www.citycollege.edu.sg/projec... Watch more Science Practical videos :    • GCE O-Levels Science Practical   Subscribe to our channel :    / @sgcitycollege   Find out more about what we do : https://www.citycollege.edu.sg We encourage your thoughtful and constructive comments or questions! Please note that inappropriate comments, language or content will not be tolerated and will be removed.