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spayn [35]
2 years ago
5

5. Select the answer for both questions ​

Chemistry
1 answer:
salantis [7]2 years ago
7 0

Answer:

engey

Explanation:

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Help Plzzz. (will vote brainliest)
kupik [55]
The difference would be that Mercury has a denser, warmer atmosphere and Earth has a not that dense and gassy atmosphere. The Earth's atmosphere also has a lot of layers while Mercury's doesn't. Those would be the reasons for them both being different. Hope this helped!
5 0
3 years ago
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How many grams of NaNO3 can be dissolved in 200mL of water at 40 degrees Celsius?
Tju [1.3M]

Answer:

I think the answer is, 100.

Explanation:

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6 0
2 years ago
Solid calcium hydroxide is dissolved in water until the pH of the solution is 10.44. Determine the concentration of the calcium
Orlov [11]

Answer:

1.38x10⁻⁴ M

Explanation:

First, we <u>calculate the pOH of the solution</u>, using the <em>given pH</em>:

  • pOH = 14 - pH
  • pOH = 14 - 10.44
  • pOH = 3.56

Now we <u>calculate the concentration of OH⁻</u>, using<em> the pOH</em>:

  • pOH = -log[OH⁻]
  • [OH⁻] = 10^{-pOH} = 2.75x10⁻⁴ M

Following the reaction Ca(OH)₂ → Ca⁺² + 2OH⁻, we divide [OH⁻] by 2 to calculate [Ca(OH)₂]:

  • [Ca(OH)₂] = 2.75x10⁻⁴ M / 2
  • [Ca(OH)₂] = 1.38x10⁻⁴ M
6 0
2 years ago
I need help question 7
algol [13]

Answer:

B

Explanation:

As you can see in these 4 examples, B- looks completely different from A, C, D! In B: The reactants and products are completely different in the Element Figures.

8 0
3 years ago
Help, cant get it. Answers in picture
Aleks04 [339]

Answer:17.0

Explanation:

8 0
3 years ago
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