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3 years ago

The first step in creating a network is building a(n) _____.

Chemistry

2 answers:

PolarNik [594]3 years ago

5 0

Answer:

Explanation:

I just took the test :3

Pavlova-9 [17]3 years ago

3 0

A. contact list hope it helped you with ur question

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Ammonia is a gas for which reliable analytical methods are available to determine its concentration in other gases. To measure f

IgorLugansk [536]

amount of ammonia injected:

72.3 kg/min x 12 min = 867.6 kg

ammonia concentration = 0.382%

$\tt 0.382\%=\dfrac{mass~amonia}{mass~ammonia+mass~natural~gas}\times 100\%\\\\0.00382=\dfrac{867.6}{867.6+mass~natural~gas}\\\\mass~natural~gas=226,252.88~kg/12min=1131264.4~kg/h$

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2 years ago

Why do we need to be aware of the sound intensity of certain things

Alex

Answer:

It may blow your eardrums, or affect your hearing in other ways.

hope this helps! plz mark brainliest :)

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2 years ago

Which element is composed of molecule that each contain a multiple covalent bond?

Ahat [919]

Nitrogen is the answer

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3 years ago

_________ are elements of the same element that have a different _______________ due to a different number of _____________.

Andreas93 [3]

Answer: Isotopes

Explanation:

The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. Different isotopes of the same element have different masses.

Hope this helps!

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4 years ago

Write the Ksp expression for the sparingly soluble compound chromium(III) hydroxide, Cr(OH)3.

Klio2033 [76]

Answer and Explanation: Ksp is the Solubility Product Constant and is the equilibrium constant that happens when a solid is dissolved in an aqueous solution.

The dissolution of chromium (III) hydroxide:

$Cr(OH)_{3}_{(s)}$ ⇄ $Cr^{3+}_{(aq)} + 3OH^{-}_{(aq0)}$

Every equilibrium constant is of the form:

$K = \frac{[products]^{coefficient}}{[reagents]^{coefficient}}$

Then,

$K_{sp} = [Cr^{3+}_{(aq)}][OH^{-}_{aq}]^{3}$

The reagent is not included because solids don't take part in euqilibrium constants.

<u>So, Ksp of chromium (III) hydroxide is </u> $K_{sp} = [Cr^{3+}_{(aq)}][OH^{-}_{aq}]^{3}$ <u />

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4 years ago