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3 years ago

27)

Chemistry

1 answer:

IRISSAK [1]3 years ago

4 0

Answer:

Adding a catalyst

Explanation:

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a solution of AICI is combined with a solution of KOH. Identify the precipitate and the spectator ions in the resulting reaction

joja [24]

The the precipitate : Al(OH)₃(s)

The spectator ions : 3Cl⁻ and 3K⁺

<h3>Further explanation</h3>

Reaction

AlCl₃ + 3KOH → Al(OH)₃ + 3KCl

From solubility rules :

Compounds of OH− are insoluble except Compounds of Li +, Na +, K +, Rb +, Cs +, NH₄⁺ , Sr²⁺, and Ba²⁺

Compounds of Cl−, Br−, I− are soluble except Ag⁺, Hg₂²⁺, Pb²⁺

So the the precipitate : Al(OH)₃(s)

net ionic reaction

AlCl₃ + 3KOH → Al(OH)₃ + 3KCl

Al³⁻+3Cl⁻+3K⁺+3OH⁻⇒Al(OH)₃(s)+3K⁺+3Cl⁻

Remove the spectator : 3Cl⁻ and 3K⁺

Al³⁻(aq)+3OH⁻(aq)⇒Al(OH)₃(s)

5 0

3 years ago

The atomic number for iodine? 1/53. 2/10. 3/13. 4/16

charle [14.2K]

Answer:53

Explanation:

8 0

3 years ago

What volume (in L) of a 1.25 M

sleet_krkn [62]

Answer:

V1= 0.305L

Explanation:

To find the initial volume of 1.25M potassium fluoride needed to make tge dilution specified in the question, we can use: C1 × V1 = C2 × V2

Since the question wants the volume in litres, convert 455 mL to L

455/ 1000

= 0.455 L

Now make the substitution

1.25 × V1 = 0.838 × 0.455

Rearrange to make V1 the subject

V1=

$\frac{0.838 \times 0.455}{1.25 } = 0.305$

4 0

4 years ago

Complete and balance the precipitation reactions. Include physical states in your equations.

avanturin [10]

Answer:

AgNO₃(aq) + NaCl(aq) ⇄ AgCl(s)↓ + NaNO₃(aq) Kps

2K₃PO₄(aq) + 3MgCl₂(aq) ⇄ 6KCl (aq) + Mg₃(PO₄)₂ (s)↓ Kps

Explanation:

In the first reaction (1) we have:

Silver nitrate and sodium chloride as the reactants. Then the products will be, silver chloride (s) and sodium nitrate.

We know that all the salts from the nitrate are soluble, so the chloride will react to the silver cation to make the precipitate, an insoluble salt.

AgNO₃(aq) + NaCl(aq) ⇄ AgCl(s)↓ + NaNO₃(aq) Kps

For the second reaction (2), the reactants are:

Potassium phosphate and magnessium chloride

Phosphate salts are insoluble, except for the group 1. The same as chloride that makes soluble salts with the elements from the group 1.

The equation that makes the precipitate is.

2K₃PO₄(aq) + 3MgCl₂(aq) ⇄ 6KCl (aq) + Mg₃(PO₄)₂ (s)↓ Kps

5 0

3 years ago

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Li- outer energy level

timofeeve [1]

Answer:

what exactly do you want solved ?

Explanation:

4 0

3 years ago