A lot of ionic compounds dissolve in water, dissociating into individual ions. But when two ions find each other that form an insoluble compound, they suddenly fall out of solution in what's called a precipitation reaction. In this...

If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding...

The video discusses solubility rules and how to determine whether a salt or compound is soluble or insoluble in water. State symbols are introduced as a way to determine the state of chemicals or species in a reaction. The video then...

This video presents a lecture on water treatment, specifically on the processes involved in making water extracted from lakes and rivers fit for human consumption. The speaker discusses the different compounds and elements that might be...

Group IV elements, including carbon, silicon, germanium, tin, and lead, have varying reactivity with water, acids, and bases due to their varying electronegativities and bond strengths. Carbon is generally unreactive, while silicon...

This video covers:

- How to test for carbonates by reacting with an acid and then bubbling the gas through lime
water
- How to test for sulfate ion with dilute hydrochloric acid and bariu
m chloride
- How to test for...

The Nef reaction is a good way to convert nitronates into carbonyl compounds. This is a technique that can be incorporated into a strategy called "Umpolung", which refers to a reversal of polarity, such that upon converting from the...

Most transition metal cations can do something interesting in solution, they can interact with specific ligands to form complex ions. These coordinate covalent bonds are new territory, so let's get a mini introduction to inorganic...

In this video, the speaker discusses a required practical activity on the chemistry specification which involves investigating how increasing the concentration of a reactant increases the rate of reaction by collecting a gas. The speaker...

The video discusses common chemical reactions involving metals such as oxidation and reduction, the formation of positive ions, and redox reactions. It also shows the results of experiments where different metals react with water and...

We add potassium iodide and lead(II) nitrate to the opposite sides of a Petri dish filled with water to see how quickly they diffuse. When added to the water, the chemicals spread through the dish and when they meet they react to form...

The Nitrogen Cycle | Environmental Chemistry | Chemistry | FuseSchool Nitrogen is essential to life. Plants and animals need nitrogen to make proteins, which are the building blocks of cells. Nitrogen makes up 78% of the air, however,...

The video provides a detailed explanation of how to prepare a pure dry sample of an insoluble salt, specifically lead sulfate. The speaker first explains the solubility rules that determine whether a salt is soluble or not. Then, he goes...

The video is a chemistry lesson on making insoluble salts. The teacher explains the concept of state symbols and how they indicate if a salt is soluble or insoluble. The teacher also covers solubility rules and how they predict if a salt...

This is a tutorial video on the required practical activities for identifying positive metal ions or negative non-metal ions in a solution in chemistry. The video explains the tests that need to be carried out and the expected outcomes...

The Large Lakes Observatory (LLO) helps an interdisciplinary group of scientists use oceanographic research approaches to investigate the mysteries of large lakes, and that includes everything from large-scale reactions to climate change...

The Large Lakes Observatory (LLO) helps an interdisciplinary group of scientists use oceanographic research approaches to investigate the mysteries of large lakes, and that includes everything from large-scale reactions to climate change...

In this video Paul Andersen shows you how to write balanced equations that describe chemical changes. He then gives you a short introduction to balancing equations and uses the PHET site to practice this skill. In aqueous solutions an...

In this video Paul Andersen explains how heat can be absorbed in endothermic or released in exothermic reactions. An energy diagram can be used to show energy movements in these reactions and temperature can be used to measure them...

Hank introduces us to the brilliant and heartless Fritz Haber, a great mind who is considered "the father chemical warfare," but who also made discoveries and innovations that helped lead to the Green Revolution which is credited with...

Once upon a time, there was a lake that was so radioactive, that standing on its shore for more than an hour would almost definitely kill you. Join Olivia to learn how it got that bad in the first place, and what was done to fix it!

This video explains the concept of concentration of a solution and how it can be measured in grams per decimeter cubed or moles per decimeter cubes. It provides examples of calculations involving concentration and volume, as well as a...

Learn about the Haber Process and the uses of Ammonia within the overall reactions topic.

Learn the basics about testing for negative ions. Which methods and techniques are used to test negative ions? Find out more in this video!