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26. What kind of small objects composes much of the universe? 27. What substance fizzes when you add water, HCI, Iodine andKI solution? |
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Answer» 1-The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.2-Hydrogen iodide (HI) is a DIATOMIC MOLECULE and hydrogen HALIDE. Aqueous solutions of HI are known as hydroiodic ACID or hydriodic acid, a strong acid. Hydrogen iodide and hydroiodic acid are, however, different in that the former is a gas under standard conditions, whereas the other is an aqueous solution of the gas. They are interconvertible. HI is used in organic and inorganic synthesis as one of the primary sources of iodine and as a reducing agent.Hope it HELP uPLEASE MARK IT AS BRAINLISTExplanation: |
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