Question

26. What kind of small objects composes much of the universe?
27. What substance fizzes when you add water, HCI, Iodine and
KI solution?​

Answer 1

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.

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Explanation:

Answer 2

Atoms & HI Substance

Explanation:

• Atoms are incredibly small particles that make up everything in the universe. As far as we know, there are 118 different elements; around 92 that occur naturally and another 26 that scientists have created in laboratories (although this number fluctuates as scientists discover and create new elements). Each element is comprised of atoms that are unique to that element; hydrogen atoms are different from gold atoms, which are different from neon atom
• Hydrogen iodide (HI) is a diatomic atom and hydrogen halide. Watery arrangements of HI are known as hydroiodic corrosive or hydriodic corrosive, a solid acid.HI is a drab gas that responds with oxygen to give water and iodine. With clammy air, HI gives a mist (or vapor) of hydroiodic corrosive. It is astoundingly dissoluble in water, giving hydroiodic corrosive. One liter of water will break up 425 liters of HI, the most thought arrangement having just four water particles for each atom of HI