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Maslowich
3 years ago
12

Identify the number of protons, neutrons, and electrons in a neutral atom of each of the following (you can refer to a periodic

table) carbon-12 sodium-23 silver-108 sulfur-32
Chemistry
1 answer:
Delvig [45]3 years ago
7 0
You must first know that the number of protons and neutrons are same, and neutrons number may vary. Carbon 12 has 6 protons, 6 neutrons and 6 electrons. Sodium 23 has 12 protons , 12 electrons and and 11 neutrons. Silver 108 has 47 protons, 47 electrons and 61 electrons. Finally, Sulfur 32 has 16 protons, 16 nuetrons and 16 electrons. Basically the number of neutrons in an atom can be found by subtracting proton number from mass number
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The atmosphere's variable gases that most influence the greenhouse effect are _____. nitrogen and oxygen argon and carbon dioxid
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The correct answer is carbon dioxide and water vapor

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A chemist must prepare of 800.0 ml potassium hydroxide solution with a pH of 13.00 at 25°.
ArbitrLikvidat [17]

Answer:

4.48 grams is the mass of potassium hydroxide that the chemist must weigh out in the second step.

Explanation:

The pH of the solution = 13.00

pH + pOH = 14

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pOH=-\log[OH^-]

1.00=-\log[OH^-]

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KOH(aq)\rightarrow K^+(aq)+OH^-(aq)

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Volume of the KOH solution = 800 mL= 0.800 L

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Moles of KOH = n

Molarity=\frac{Moles}{Volume(L)}

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n = 0.0800 mol

Mass of 0.0800 moles of KOH :

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4.48 grams is the mass of potassium hydroxide that the chemist must weigh out in the second step.

4 0
3 years ago
When Lithium-7 loses 1 electron it
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If it loses an electron, it will become an ion.

8 0
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Answer:

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So the result is 0.9 moles of water

(Please correct me if I'm wrong)

5 0
3 years ago
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