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KCSE-Past-Papers-2019-Chemistry-Paper

on February 11, 2021

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CONDUCTOR And INSULATOR

An inorganic acid (also called a mineral acid ) is an acid derived from one or more inorganic compounds. All inorganic acids form hydrogen ions and the conjugate base ions when dissolved in water. Commonly used inorganic acids are sulfuric acid (H 2 SO 4 ), hydrochloric acid (HCl), and nitric acid (HNO 3 ). FLOW OF ELECTRON IN CONDUCTOR ELECTROMOTIVE FORCE A battery is an electronic device that converts chemical energy into electrical energy to provide a static electrical charge for power. Whereas a capacitor is an electronic component that stores electrostatic energy in an electric field. MORE https://www.electricaltechnology.org/2020/07/what-is-voltage.html MORE VOLTAGE = MORE CHARGE

Matter - Form 1 = Physics

Why do molecules at the surface of liquid have higher energy as compared to molecules in bulk? When some liquid evaporates, the average speed of the molecules remaining will Answer Substance is made up element and compound. Element is the substance with limit of chemical analysis. Chemical Analysis , the study of the chemical composition and structure of substances. Compound is made up of two or more element. Matter is made up of atoms, ions and molecules. Matter increase in volume(expand) when temperature increase Decrease in volume(contraction) when temperature decrease Gas is easily compressible. Liquid is slightly compressible Solid is incompressible . Do not affected by the change of pressure. Kinetic Theory of Matter states that all matter is made of small particles that are in random motion and that have space between them. The kinetic molecular theory of matter states Matter is made up of particles that are constantly moving. All p

Matter - Form 1 - Chemistry

Napthalene is the ingradient found in mothballs https://www.youtube.com/watch?v=MostFAuz02o Chemical analysis determination of the physical properties or chemical composition of samples of matter. Molecules composed of only two atoms , of the same or different chemical elements. If a diatomic molecule consists of two atoms of the same element, such as hydrogen (H 2 ) or oxygen (O 2 ), then it is said to be homonuclear.

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KCSE-Past-Papers-2019-Chemistry-Paper

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