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bekas [8.4K]
3 years ago
15

Planet X is a planet in our solar system. Planet Y is a dwarf planet. Identify their characteristics.

Chemistry
2 answers:
Dmitry [639]3 years ago
7 0
Planet X is closer to the sun, most likely has life on it. Planet Y is a smaller one farthest away from sun and has very little light leaving it a baron waist land.
lapo4ka [179]3 years ago
5 0

Answer:

Planet X is closer to the sun then Planet Y, which makes it a dwarf planet. Planet Y is also too small to be an ACTUAL planet.

Explanation:

I know this answer because I remember how Pluto became a dwarf planet, because it was to small, was far away, and had a weird orbit. You're welcome!

-Dub

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How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O? The reaction is
skelet666 [1.2K]
The balanced chemical reaction is:

<span>C + H2O → CO + H2
</span>
We are given the amount of carbon to be used in this reaction. This will be the starting point of the reaction.

<span>34 g C ( 1 mol C / 12.01 g C ) ( 1 mol  H2/ 1 mol C) (2.02 g H2 / 1 mol H2) = 5.72 g H2

Apparently, the correct answer is not in the given choices.</span>
3 0
4 years ago
What is the ph of 0.51 m ca(ch3coo)2 solution?
Sidana [21]

Answer : The pH of calcium acetate solution will be 9.38.


Explanation : When calcium acetate dissocates completely in solution to form Calcium(+2) ions and two acetate ions, this gives the acetate ion concentration as (2 X 0.51 M) = 1.02 M

Acetate ion then hydrolyzes as follows;


C_{2}H_{3}O_{2}^{-}  + HOH  HC_{2}H_{2}O_{2} + OH^{-}:

Now, Kb will be = [HC_{2}H_{2}O_{2}]  [OH^{-}] / [C_{2}H_{3}O_{2}^{-}]


= Kw / Ka


= 1 x 10^{-14} / 1.8 x 10^{-5} = 5.6 × 10^{-10}

[OH^{-}] = 2.4 × 10^{-5}


Now, we know , pOH = -log [OH^{-}] = 4.62


So, the pH = 14 - pOH = 14 - 4.62 = 9.38

8 0
3 years ago
Which of the following is an example of a buffer?
Aleonysh [2.5K]

It's Hemoglobin- i just took test


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4 years ago
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Fittoniya [83]
Yes because plants are a source of food for some animals
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Read 2 more answers
Coefficients of the correct balanced equation for the reaction, CaCl2 + AgNO3 ⟶ AgCl + Ca(NO3)2.
mote1985 [20]

Answer:

CaCl2 + 2 AgNO3 ---> 2 AgCl + Ca(NO3)2

6 0
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