Conservation of atoms. The constant composition of compounds. Atomic weights. Percent composition. 3-8 The fluoridation of drinking water The composition of teeth. The social issues in water fluoridation. The chemical issues in water fluoridation. Effects of various amounts of fluorine. 3-9 On pho...
Teflon, known scientifically aspolytetrafluoroethylene(PTFE), is a type of fluoropolymer that is primarily composed of carbon and fluorine. This structure gives it unique characteristics, such as being resistant to high temperatures and having a lowfrictioncoefficient, which contributes to its non-stick...
The X-ray camera uses the same film technology as an ordinary camera, but X-ray light sets off the chemical reaction instead of visible light. (See How Photographic Film Works to learn about this process.) Generally, doctors keep the film image as a negative. That is, the areas that ...