🧪 Chemistry is the science of substances and how they change into different substances.
🌈 Chemical changes can be identified by a change in color.
💡 Chemistry is crucial in everyday life as it is responsible for the creation of various substances and materials.
💧 Magic disappearing water represents a triumph of physics, as it is made to disappear into thin air.
❄️ Liquid nitrogen, with a boiling point of -196 degrees Celsius, is one of the coldest substances on Earth.
🔥 Pouring liquid nitrogen into tightly sealed containers can cause a dangerous expansion.
❄️ Liquid nitrogen can cause bottles to explode due to the high pressure generated when it evaporates.
🧪 Pouring liquid nitrogen on water freezes it and demonstrates the three states of matter.
💥 As water freezes and expands, it can create mechanical forces, resulting in crackling sounds.
🧪 The use of liquid nitrogen revolutionized technology, leading to inventions like frozen food and refrigerators.
❄️ Experiments with low temperatures demonstrate interesting effects, such as the expansion of liquid nitrogen and the elastic properties of rubber.
💥 The pressure generated by boiling liquid nitrogen can cause explosions in containers.
💥 Rubber tubing shatters into fragments when dropped into liquid nitrogen due to the freezing of molecules.
🧪 Water freezes and rearranges its molecules to form an open lattice, demonstrating intermolecular forces.
🎈 Pouring liquid nitrogen over a balloon causes it to contract and collapse due to reduced energy, but it regains its shape when warmed up.
🔥 Fire is a significant human achievement, with the ability to make and sustain fire dating back to ancient civilizations in East Africa.
💨 The discovery of oxygen and its role in combustion revolutionized the way fuels are combined and burned, leading to more efficient and powerful flames.
🎆 Gun cotton, a high explosive, and the use of a mortar to propel ping pong balls demonstrate the principles of propulsion and the application of chemistry in creating exciting effects.
🔥 Andrew Szydlo demonstrates 25 chemistry experiments in 15 minutes, including the combustion of hydrogen and oxygen.
💥 He creates a thunder and lightning effect using flash powder.
🧪 Overall, the video promotes chemistry as an accessible and fascinating subject for everyone.
[Mandatory] Bangkit 2023 H2 - Student Team Meeting 2
MENATA ULANG OTAK, MEMAHAMI JIWA ANDA !!! - dr. Aisah Dahlan, CHt.
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《初級》世界期貨/外匯交易錦標賽參賽者Marek Chrastina訪談(一)/本影片為學員講座節錄版本,學員可以直接透過授權申請觀看完整講座內容~
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