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LenaWriter [7]
3 years ago
10

PLS!! I really need help since I don´t understand this

Chemistry
2 answers:
Juli2301 [7.4K]3 years ago
8 0

Answer:

use the periodic table

Explanation:

MAVERICK [17]3 years ago
5 0

Here is a photo of the periodic table! This photograph might help you with what you're in need of.  If you still don't know, just comment and I'll try my best to help!

            <em>Hope this is a little helpful!</em>

<em>       ~Hocus Pocus</em>  

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Potassium bromide conducts electricity when ______
amm1812

Answer:

When melted or dissolved in water.

Explanation:

Potassium bromide in its solid form contains ions, which are charged atoms. Through the heating process, the melted potassium bromide becomes an ionic liquid. If solid potassium bromide is dissolved, for example in water, the resulting release of ions allows it to conduct electricity.

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3 years ago
Why can polar water molecules pass through a cell membrane?
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4 years ago
The ka of hypochlorous acid (hclo) is 3.0 x 10-8 at . what is the % ionization of hypochlorous acid in a 0.015 m aqueous solutio
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Answer is: the % ionization of hypochlorous acid is 0.14.

Balanced chemical reaction (dissociation) of an aqueous solution of hypochlorous acid:

HClO(aq) ⇄ H⁺(aq) + ClO⁻(aq).

Ka = [H⁺] · [ClO⁻] / [HClO].

[H⁺] is equilibrium concentration of hydrogen cations or protons.

[ClO⁻] is equilibrium concentration of hypochlorite anions.

[HClO] is equilibrium concentration  of hypochlorous acid.

Ka is the acid dissociation constant.

Ka(HClO) = 3.0·10⁻⁸.

c(HClO) = 0.015 M.

Ka(HClO) = α² · c(HClO).

α = √(3.0·10⁻⁸ ÷ 0.015).

α = 0.0014 · 100% = 0.14%.

5 0
3 years ago
Adding copper or magnesium to aluminum creates an alloy that is _____. more flammable than magnesium heavier than steel stronger
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stronger than aluminum

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