State Symbols in Chemical Equations | Properties of Matter | Chemistry | FuseSchool

In this video, we will look at the state symbols (s), (l), (g), and (aq) and what they represent in a chemical equation. For equations to be complete, we must also include the state symbol for each reactant and product. There are four possible states, each with their own unique state symbol. Solid – represented by lower case s. Liquid – represented by lower case l. Gas – represented by lower case g. Aqueous, or dissolved in water – represented by lower case aq. This is written after each reactant or product in brackets and in subscript, meaning, a bit lower than the actual text. State symbols represent the state of each reactant and each product in a reaction, and must be included in every chemical equation. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid. Twitter: Access a deeper Learning Experience in the FuseSchool platform and app: Friend us: This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: Transcript: alugha Click here to see more videos:

LicenseCreative Commons Attribution-NonCommercial

More videos by this producer

Substitution | Algebra | Maths | FuseSchool

In algebra, we replace a letter with numbers in the process known as substitution. Given the formula A = 1/2bh, if the base is 5cm and the height is 10cm, then the area is ½ X 5 X 10 because we have replaced the b with 5 and the h with 10. You just need to be be careful with negative numbers: it is