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andrey2020 [161]
2 years ago
14

Hi i was wondering if you could subscribe to my youtub/e channel, you don't have to but it would mean the world to me, and stay

subscribed? thank you :) my Youtu/be is Rukaiya Berri, just search me up on youtub/e :)
Chemistry
2 answers:
Inga [223]2 years ago
8 0

Answer:

ok

Explanation:

nlexa [21]2 years ago
3 0

Answer:

Ok.

Explanation:

I love your channel!!!

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I'm thinking Henri's wave and Geri's wave have the same amplitude and energy, but i'm not %100 sure

Explanation:

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Which are made matters
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Which two factors are most likely to cause a plants guard cell to open its stomata
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Hydrogen sulfide decomposes according to the following reaction: 2H2S(g) ⇋ 2H2(g) + S2(g) Kc=9.30x10-8 at 700.°C.If 0.45 mol of
Natalija [7]

Answer:

[H₂] = 1.61x10⁻³ M

Explanation:

2H₂S(g) ⇋ 2H₂(g) + S₂(g)

Kc = 9.30x10⁻⁸ = \frac{[H_{2}]^2[S_{2}]}{[H_{2}S]^2}

First we <u>calculate the initial concentration</u>:

0.45 molH₂S / 3.0L = 0.15 M

The concentrations at equilibrium would be:

[H₂S] = 0.15 - 2x

[H₂] = 2x

[S₂] = x

We <u>put the data in the Kc expression and solve for x</u>:

\frac{(2x^2) * x}{(0.15-2x)^2}=9.30x10^{-8}

\frac{4x^3}{0.0225-4x^2}=9.30*10^{-8}

We make a simplification because x<<< 0.0225:

\frac{4x^3}{0.0225} =9.30*10^{-8}

x = 8.058x10⁻⁴

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3 years ago
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The nucleus contains positively charged ___ and neutral ___ and makes up more than 99% of the mass of an atom.
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ions

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