2 years ago

FREE PONITS COME GET YOUR PONITS!!!! :)

Chemistry

2 answers:

trasher [3.6K]2 years ago

7 0

Explanation:

Need points thanks.

Katen [24]2 years ago

3 0

Yay thnx:))))))))))))))))

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MULTIPLE CHOICE QUESTION

marishachu [46]

Mg will lose 2 valance electrons to obtain octet

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2 years ago

HI decomposes to H2 and I2 by the following equation: 2HI(g) → H2(g) + I2(g);Kc = 1.6 × 10−3 at 25∘C If 1.0 M HI is placed into

dsp73

Answer: The concentration of hydrogen gas at equilibrium is 0.037 M

Explanation:

We are given:

Initial concentration of HI = 1.0 M

The given chemical equation follows:

$2HI(g)\rightleftharpoons H_2(g)+I_2(g)$

Initial: 1.0

At eqllm: 1.0-2x x x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[H_2][I_2]}{[HI]^2}$

We are given:

$Kc=1.6\times 10^{-3}$

Putting values in above expression, we get:

$1.6\times 10^{-3}=\frac{x\times x}{(1.0-2x)^2}\\\\x=-0.043,0.037$

Neglecting the negative value of 'x' because concentration cannot be negative

So, equilibrium concentration of hydrogen gas = x = 0.037 M

Hence, the concentration of hydrogen gas at equilibrium is 0.037 M

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2 years ago

Pesticides Physical properties or Chemical Properties

larisa86 [58]

A chemical Property I hope this helps friend ^^

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3 years ago

The mass of any amount of a solid, liquid, or gas relative to its volume is called its ____________.

zheka24 [161]

Eazy, it’s called density

I’m only in 8th grade science you know

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2 years ago

What will happen reaction of rubidium with water

Evgesh-ka [11]

Answer:

reaction of rubidium with water

Explanation:

rubidium metals react very rapidly with water to form a colourless solution of rubidium hydroxide ( RbOH) and hydrogen gas H2

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