Catalyst Catalyst is a chemical that does not participate in the chemical reaction. Decreases activation energy and increases reaction speed. The catalyst accelerates the reaction but does not change the chemical composition of the reagents and products involved. The amount of substance produced in the reaction does not change with the use of catalysts.
Covalent bonding is usually made between nonmetals and nonmetals, hydrogen and nonmetals, and hydrogen with hydrogen. This bond is characterized by electron sharing. Hydrogen has an electron in its valence shell. To be identical to the noble helium gas with 2 electrons in the last shell, it needs one more electron.
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Distilled water is water obtained through the distillation process. It is almost pure, salt free. Man should not drink this water because it contains very little salt dissolved in it, and may even dilute the salts of the body. Therefore it is harmful and should not be ingested. If food is controlled with the ions needed by our body, distilled water can be consumed.
Kinematics is the branch of physics that deals with the description of body movements, without worrying about the analysis of their causes (dynamics). Here's a list of formulas about this content. Speed Average Speed Uniform Motion Offset Time Function Uniformly Varied Motion Average Acceleration Speed Time Function Position Time Function Over Time Torricelli Equation Vertical Motion Vertical Time Speed Function Vertical Time Time Function Vertical Motion of Torricelli in vertical movement Oblique movement Horizontal position time function Horizontal start speed component Vertical position time function Vertical start speed component Horizontally projectile range Circular motion Angular position Angular velocity Angular acceleration Angular position hourly function in circular motion uniform Angular velocity hourly function Angular position hourly function Torricelli equation for circular motion Centripetal acceleration
Angular quantities The hitherto used displacement / space (s, h, x, y), velocity (v), and acceleration (a) quantities were useful when describing linear motions. In the analysis of circular motions, we must introduce new quantities, which are called angular quantities, always measured in radians.