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Liono4ka [1.6K]
4 years ago
8

Is this correct answer? SOMEONE PLZZ ANSWER

Chemistry
1 answer:
Bas_tet [7]4 years ago
3 0

No, It can't be chemical because it has something to do with being mechanical, an example of a chemical change would be some thing like metal rusting or wood turning to ash after being burned.


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Why is ph at the equivalence point larger than 7 when you titrate a weak acid with a strong base?
lozanna [386]

Answer:

The equilibrium is shifted to the formation of OH⁻.

Explanation:

AH + OH⁻  ⇄  A⁻ + H₂O

At the equivalence point, the acid AH has entirely been converted to A⁻, which is its conjugated base. This causes the equilibrium to shif to consume the excess of A⁻, which leads to production of OH⁻. This is why, at the equivalence point, the pH is larger than 7.

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If some paper and/or paper-like materials ignite and cause a very small fire at your lab table, you should?
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Tell your instructor immediately

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8. What is the [H+] of a solution with a pH of 4.78
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Answer:

7.01 is the answer of the [H+] of a solution with a pH of 4.78

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3 years ago
Draw the Lewis structure (including all lone pair electrons) for one isomer of the molecular formula C3H8O.
Andreyy89

Answer:

Here's how I would do it.

Explanation:

A Lewis structure shows the valence electrons surrounding the atoms.

1. Identify the central atoms

The central atoms are the least electronegative atoms (C).

I chose as my central atoms a chain of four C atoms: C-C-C-C

I stuck the most electronegative atom (O) at the end of the chain:

C-C-C-C-O

2. Complete the structure

The hydrogen atoms must be terminal. Add enough to give every atom an octet.

You should get a structure like the one below

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3 years ago
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This is a neutralization reaction since, the hydrogen ion, H+, from the HCl is neutralized by the hydroxide ion, OH-, from the KOH to form the water molecule, H2O and salt, KCl only.
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