A pyrosilicate is a type of chemical compound; either an ionic compound that contains the pyrosilicate anion Si2O6−7, or an organic compound with the hexavalent ≡O3Si-O-SiO3≡ group. The anion is also called disilicate or diorthosilicate. Ionic pyrosilicates can be considered salts of the unstable pyrosilicic acid, H6Si2O7. Unlike the acid, the salts can be stable. Indeed, pyrosilicates occur widely in nature as a class of silicate minerals, specifically the sorosilicates. Some notable synthetic pyrosilicates include * sodium pyrosilicate Na6Si2O7, a possible component of water glass. * Na2Fe2Si2O7, a potential cathode material for batteries. * Na2Mn2Si2O7, another potential cathode material. (Wikipedia).
From playlist Miscellaneous
This geometry video tutorial provides a basic introduction into the pythagorean theorem. It explains how to use it to find missing sides and solve for x. In addition, it provides examples of solving word problems using pythagorean theorem for shapes such as right triangles, squares, rhom
From playlist Geometry Video Playlist
Converse Pythagorean Theorem & Pythagorean Triples
I explain the Converse Pythagorean Theorem and what Pythagorean Triples are. Find free review test, useful notes and more at http://www.mathplane.com If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage www.YouTube.com/Profro
From playlist Geometry
Make Sodium Magnesium Oxide Aggregate - A Substitute for Sodium Metal
In this video we make sodium magnesium oxide aggregate. A useful substitute for sodium metal in most cases. Doing this is very simple, we combine 30g of magnesium metal turnings or powder and 40g of sodium hydroxide in a metal container. The mixture is ignited with sparklers or a fuse and
From playlist Pyrimethamine
Make p-chlorobenzyl chloride (from para-chlorotoluene) 3rd step in making pyrimethamine
In this video we synthesize p-chlorobenzyl chloride from para-chlorotoluene we made in an earlier video. ----------------------------------------------------------------------------------------------------- Glassware generously provided by http://www.alchemylabsupply.com/ Use the disco
From playlist Pyrimethamine
Use pythagorean identities to verify an identity
👉 Learn how to verify Pythagoras trigonometric identities. A Pythagoras trigonometric identity is a trigonometric identity of the form sin^2 (x) + cos^2 (x) or any of its derivations. To verify trigonometric expression means to verify that the term(s) on the left-hand side of the equality
From playlist Verify Trigonometric Identities
Using pythagorean identities to help me verify an identity
👉 Learn how to verify Pythagoras trigonometric identities. A Pythagoras trigonometric identity is a trigonometric identity of the form sin^2 (x) + cos^2 (x) or any of its derivations. To verify trigonometric expression means to verify that the term(s) on the left-hand side of the equality
From playlist Verify Trigonometric Identities
The Final Steps of Making Pyrimethamine ("Daraprim")
In this video we finally make Pyrimethamine. Pyrimethamine is also known as Daraprim. Related videos: Make 2-(p-chlorophenyl)-3-oxopentanenitrile: https://www.youtube.com/watch?v=5oAZyhPx_ws Getting Guanidine Carbonate and Hydrochloride from No-Lye Hair Relaxants: https://www.youtube.
From playlist Pyrimethamine
Using the Pythagorean identity to verify an identity
👉 Learn how to verify Pythagoras trigonometric identities. A Pythagoras trigonometric identity is a trigonometric identity of the form sin^2 (x) + cos^2 (x) or any of its derivations. To verify trigonometric expression means to verify that the term(s) on the left-hand side of the equality
From playlist Verify Trigonometric Identities
Pythagorean Theorem II (visual proof)
This is a short, animated visual proof of the Pythagorean theorem (the right triangle theorem) using a dissection of a square in two different ways. This theorem states the square of the hypotenuse of a right triangle is equal to the sum of squares of the two other side lengths. #mathshort
From playlist Pythagorean Theorem