Video Transcript

mercury is used in a barometer quite than water bereason mercury has actually a greater density than water, which implies the elevation of the column required for mercury will be reduced than that off water. Mercury likewise has actually a low way per push, so it will certainly not evaporate conveniently. Mercury remains liquid at a vast selection of temperatures, so it's easy to meacertain push at miscellaneous temperatures. Mercury also does not stick to glass.




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Intro To Chem - Introduction

Chemistry is the science of matter, especially its chemical reactions, but also its complace, structure and properties. Chemisattempt encounters atoms and their interactions via other atoms, and particularly through the properties of chemical bonds. Chemisattempt additionally involves expertise the properties and interactions of individual atoms and molecules for usage in larger-range applications.


Group and Properties of Matter

In chemisattempt and also physics, issue is any kind of substance that has mass and takes up area by having actually volume. All everyday objects that have the right to be touched are ultimately composed of atoms, which are comprised of communicating subatomic pposts, and in daily and also scientific usage, "matter" mainly contains atoms and also anypoint comprised of them, and also any kind of particles and objects that act as if they have both remainder mass and volume. However before it does not include massless pwrite-ups such as pholots, or other energy sensations or waves such as light or sound. Matter exists in miscellaneous claims (well-known as phases) that are identified by miscellaneous physical properties, such as state of issue, phase, form, and also density. The Standard Model of ppost physics and the general theory of relativity explain basic pwrite-ups and the standard forces acting between them that control the framework and also dynamics of issue.