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Deffense [45]
3 years ago
12

6) Which layer was older? The Biology book or the headphones?

Chemistry
1 answer:
musickatia [10]3 years ago
6 0

Explanation:

the book

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Which reaction most accurately represents the dissociation of nitrous acid (hno2) in water?
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When nitrous acid (HNO₂) dissociates in water (H₂O), the reaction that best captures this process is:

                HNO₂ (aq.) + H₂O ↔  H₃O⁺ (aq.) + NO₂⁻ (aq.)

How does one know about HNO₂?

  • The chemical designation for nitrous acid is HNO₂, and it is a monoprotic acid. Three elements—hydrogen(H), oxygen(O), and nitrogen(N), all compose it.
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Is HNO₂ a basic or an acid?

Acidity is assigned to nitrous acid (HNO₂). Once dissolved in water, it gives out H+ ions. Acid is a chemical that produces H+ ions in a water-based solution or gives the protons to other molecules.

Thus, HNO₂ is acid because it causes a mixture of water to contain H+ ions. In a 10 mM concentration, it possesses a pH of 2.67.

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If something is a hard solid, that can dissolve in water, and has a high melting point, is it Ionic of Covalent?
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<em>Ionic</em><em> </em>

If something is a hard solid, that can dissolve in water, and has a high melting point are ionic substances, because they are hard solids due to strong electrostatic force between particles and and they have high melting points because of their strong attraction between the particles which needed more energy in order to break down and melt .....

their one property is to dissolve in water because they are generally non polar which dissolves easily in polar liquids like water.

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How does the structure of water molecules account for adhesion.
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The attraction of the polar water molecules for other molecules

Explanation:

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