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Leona [35]
3 years ago
7

Please check if i did it right. did i put the right electric charge

Chemistry
1 answer:
Ad libitum [116K]3 years ago
6 0
Your protons are correct but it’s 28 neutrons not 27!
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Calculate the volume of a 0.5M solution containing 20g of NaOH
Tju [1.3M]

Answer:

1L

Explanation:

First, let us calculate the number of mole present in 20g of NaOH. This is illustrated below:

Mass = 20g

Molar Mass of NaOH = 23 + 16 + 1 = 40g/mol

Number of mole =?

Number of mole = Mass /Molar Mass

Number of mole of NaOH = 20/40 = 0.5mol

From the question given, we obtained the following data:

Molarity = 0.5M

Mole = 0.5mole

Volume =?

Molarity = mole /Volume

Volume = mole /Molarity

Volume = 0.5/0.5

Volume = 1L

6 0
3 years ago
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4. Write the chemical equation for the reaction that occurs when baking soda (NaHCO3) is
aev [14]

Answer: HCl+NaHCO₃=NaCl+CO₂+H₂O

Explanation:

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3 years ago
Ion arrangements of three general salts are represented below. h5sil917 h5sil917021 h5sil91703 which ion arrangement has the hig
vovangra [49]
This question is incomplete. Luckily, I found the same problem which is shown in the attached picture. To answer the question, we must know how the size and charge affect the lattice energy. The answer is: lattice energy increases with the increasing charge of the ions, and decreasing radius of the atoms. <em>Therefore, the ranking would be: A < B < C</em>.

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3 years ago
The step by step direction of a experiment are found in...
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Answer:

I believe it the Data Table

Explanation:

because that the final step of an experiment; recording your data throughout the experiment, and that where you recorded your steps and information throughout the experiment.

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Fe + CuCl2 mc009-1.jpg FeCl2 + Cu Which pair of substances are the products?
grigory [225]
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reactants--->reaction products
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