WebFeb 23, 2024 · water, a substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. It is one of the most plentiful and essential of compounds. A tasteless and … WebApr 5, 2024 · hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.The hydrogen atom has a nucleus consisting of a proton …
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WebAug 8, 2024 · Figure 15.1. 2: Water is a polar molecule, as greater electron density is found around the more electronegative oxygen atom. Polar molecules attract one another by dipole-dipole forces, as the positive … WebThe name carbohydrate comes from the fact that many simple sugars have chemical formulae that look like water has simply been added to carbon. (The suffix hydrate from the Greek word hydor ("water") means "compound formed by the addition of water.") The actual chemical structure of carbohydrates doesn't look anything like water molecules bonded ... WebFeb 2, 2024 · Arsenic. Arsenic occurs naturally but also ends up in groundwater thanks to wood preservatives, petroleum, and pesticides. It can be dangerous, too. Researchers at Columbia University studied children … onawa trestle