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exis [7]
3 years ago
7

I made this worth 70 points so please help

Chemistry
2 answers:
photoshop1234 [79]3 years ago
7 0

Hi!

1196.46g of Si is your answer!

Hope this helps ya fam!


~CoCo

zysi [14]3 years ago
4 0

your answer is 119.64 grams

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Write the equation for the dissolution of sodium carbonate in water as found in your laboratory guide.
Arisa [49]
Na₂CO₃(s) → 2Na⁺(aq) + CO₃²⁻(aq)
The sodium carbonate formed from a strong base and a weak acid. Hydrolysis is subjected to the anion of a weak acid.

CO₃²⁻ + H₂O ⇄ HCO₃⁻ + OH⁻
HCO₃⁻ + H₂O ⇄ H₂CO₃ + OH⁻

pH>7 alkaline solution

2Na⁺ + CO₃²⁻ + 2H₂O ⇄ 2Na⁺ + 2OH⁻ + H₂CO₃
3 0
3 years ago
If you flow a solution of Mg CO3-- in water over a Cation resin, what will be in the outlet stream leaving the bed
vodka [1.7K]

In a a cation-exchange resin, the outlet stream leaving the bed will contain H^{+} and CO_3 ^{2-}.

<h3>What is cation-exchange resin?</h3>
  • A resin or polymer that serves as a medium for ion exchange is known as an ion-exchange resin or cation-exchange resin.
  • It is an insoluble matrix (or support structure) made from an organic polymer substrate, typically appearing as tiny (0.25-1.43 mm radius) microbeads that are white or yellowish in color.
  • The process is known as cation-exchange resin because the beads are often porous, providing a wide surface area on and inside them where the trapping of ions takes place along with the concomitant release of other ions.
  • cation-exchange resin comes in many different varieties. Polystyrene sulfonate is the main ingredient in most commercial resins. Many diverse separation, purification, and decontamination techniques use cation-exchange resin.
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To learn more about cation-exchange resin with the given link

brainly.com/question/21052225

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8 0
2 years ago
Most elements found in nature with the exception of the
Ira Lisetskai [31]

The right answer is noble gases.

The noble gases, or rare gases, are the chemical elements of group 18 (formerly "group VIIIA" or even "group 0") of the periodic table. These are helium He, neon 10Ne, argon 18Ar, krypton 36Kr, xenon 54Xe and radon 86Rn, the latter being radioactive.

This property means that they can not bind with other atoms to form molecules or lose electrons to transform into ions, hence their name noble or inert gases (they are not very active and do not do not mix). In nature, all elements "want" to become stable.

8 0
3 years ago
PLEASE HELP FASTTT!!!!
Umnica [9.8K]
I did this when I was younger
4 0
3 years ago
This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):
Anastaziya [24]

Answer:

0.017 mol

Explanation:

CH3COOH  - acetic acid - we can write as C2O2H4

From formula C2O2H4 we can see that ratio C: O = 2:2 = 1:1, so number of moles C and O are the same.

So if we have 0.017 mol C, we should have 0.017 mol O.

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3 years ago
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