3 years ago

Guys please help me

1 answer:

4 0

Answer:

When the number of electrons does not equal the number of protons, the atom is ionized and then they are no longer atoms, they are known as ion(s).

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Inga [223]

Answer:

pKa = 4.89.

Explanation:

We can solve this problem by using the Henderson-Hasselbach equation, which states:

pH = pKa + log $\frac{[A^-]}{[HA]}$

In this case [A⁻] is the concentration of sodium benzoate and [HA] is the concentration of benzoic acid.

We input the given data:

4.63 = pKa + log $\frac{0.16}{0.29}$

And solve for pKa:

pKa = 4.89

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3 years ago

seropon [69]

A geological process changes the Earth's surface.

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creativ13 [48]

Answer:

Explanation:

Since the atom has three electrons, it has a -3 electrical charge. Since atoms are neutral, 3 protons are needed to get the charge back to 0.

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3 years ago

iogann1982 [59]

Answer:

have you finished this yet

Explanation:

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3 years ago

lara31 [8.8K]

well , it's true because they are of sp3d type occur on sets of four

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3 years ago