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Elza [17]
3 years ago
6

Sodium hydroxide (NaOH) and elemental sodium (Na)

Chemistry
1 answer:
Olegator [25]3 years ago
6 0

Answer:

If the question is which can make a buffer, then NH3, NH4Cl should be correct. Because Ammonium (NH4) is conjugate acid of NH3 so they can form an equilibrium which is basically a buffer whose purpose is to resist pH change.

Explanation:

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Hope this helps :)

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ValentinkaMS [17]

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Explanation:

Remember that the mass number will tell you the number of protons and neutrons. If you have the mass number(65) and the number of neutrons (36), you just need to subtract: 65 - 36 = 29 the number or protons.

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Explanation:

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