3 years ago

On a victim, a circular entrance wound with black edges is found. Which most likely caused this wound?

Chemistry

2 answers:

castortr0y [4]3 years ago

4 0

The answer is D. my friend :)

max2010maxim [7]3 years ago

4 0

a pistol fired at close range with leave the black mark on the skin the correct answer is d

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The acid HOCl (hypochlorous acid) is produced by bubbling chlorine gas through a suspension of solid mercury(II) oxide particles

sergejj [24]

<u>Answer:</u> The expression for equilibrium constant is $K_{eq}=\frac{[HOCl]^2}{[H_2O][Cl_2]^2}$

<u>Explanation:</u>

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_{eq}$

For the general chemical equation:

$aA+bB\rightleftharpoons cC+dD$

The expression for $K_c$ is given as:

$K_c=\frac{[C]^c[D]^d}{[A]^a[B]^b}$

For the given chemical reaction:

$2HgO(s)+H_2O(l)+2Cl_2(g)\rightleftharpoons 2HOCl(aq.)+HgO.HgCl_2(s)$

The expression for $K_{eq}$ is given as:

$K_{eq}=\frac{[HOCl]^2[HgO.HgCl_2]}{[HgO]^2[H_2O][Cl_2]^2}$

The concentration of solid is taken to be 0.

So, the expression for $K_{eq}$ is given as:

$K_{eq}=\frac{[HOCl]^2}{[H_2O][Cl_2]^2}$

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3 years ago

3. What methods are you using to test this hypothesis? Outline the steps of the procedure in full sentences.

Ulleksa [173]

Answer:

AHYPOTHISES IS A GUESS

Explanation:

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2 years ago

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Lynx and wolf!!! (: hope this helps

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A student pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. She

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A) Time for salt to dissolve.

This factor depends on the other steps mentioned to dissolve the salt.

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3 years ago

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