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Yanka [14]
3 years ago
13

How many total electrons are in a sr 2 ion?

Chemistry
1 answer:
fredd [130]3 years ago
4 0
Sr    N(e⁻)=38
Sr²⁺  N(e⁻)=38-2=36

36e⁻
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The allotropic form of a non – metal is a good conductor of electricity. Name the nonmetal.
SashulF [63]

Answer:

carbon with graphite as the allotrope

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3 years ago
Prediction for Scandium (II) and Cl
Nimfa-mama [501]

Answer:

ScCl₂

General Formulas and Concepts:

<u>Chemistry</u>

  • Reading a Periodic Table
  • Reaction Prediction
  • Determining Chemical Compounds

Explanation:

<u>Step 1: Define</u>

Scandium (II)

Cl

<u>Step 2: Determine Charges</u>

Sc²⁺

Cl⁻

<u>Step 3: Predict Compound</u>

<em>We need to balance out the charges so the overall charge is 0.</em>

ScCl₂

<u>Step 4: Reaction</u>

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3 years ago
Noble gas configuration
saw5 [17]

Answer:

Rubidium= [Kr] 5s^1

Calcium= [Ar] 4s^2

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Explanation:

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Hope this helped! good luck :)

3 0
3 years ago
The kb of hypochlorous acid is 3. 0×10^–8 at 26. 0 C. What is the percent of ionization of hypochlorous?
astraxan [27]

The acid dissociation constant (Ka) defines the difference between a weak and a strong acid. The % ionization of hypochlorous acid is 0.14%.

<h3>What is the acid dissociation constant?</h3>

The acid dissociation constant is used to define the ionization constant of an acidic substance. It gives the quantitative measurement of the strength.

The ICE table is attached to the image below.

The acid dissociation constant (Ka) for the reaction is,

Ka = [H⁺][ClO⁻] ÷ [HClO]

= a² ÷ (0.015 - a)

= 3.0 x 10⁻⁸

Now, a² + 3.0 x 10⁻⁸ a - 4.5 × 10⁻¹⁰ = 0

So, a = 2.210 × 10⁻⁵

Solving further,

[H+] = a = 2.210 × 10⁻⁵ M

The percent ionization is calculated as,

[H+] ÷ [HClO] × 100

= 2.210 × 10⁻⁵ M ÷ 0.015 × 100

= 0.14 %

Therefore, 0.14 % is the percentage of hypochlorous ionization.

Learn more about acid dissociation constant here:

brainly.com/question/22668939

#SPJ4

Your question is incomplete, but most probably your full question was, The ka of hypochlorous acid (HClO) is 3.0 x 10⁻⁸ at 25.0°C. What is the % of ionization of hypochlorous acid in a 0.015 aqueous solution of HClO at 25.0C?

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2 years ago
Will give BRAINLY if right
Nastasia [14]

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