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3 years ago

What mass of iron is needed to react with 16.0 grams of sulfur

Chemistry

1 answer:

scoray [572]3 years ago

8 0

Answer: 28 grams of iron is needed to react with 16.0 grams of sulfur

Explanation: Please see the attachments below

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ruslelena [56]

Answer:

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Explanation:

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3 years ago

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The 1995 Nobel Prize in Chemistry was shared by Paul Crutzen, F. Sherwood Rowland, and Mario Molina for their work concerning th

horrorfan [7]

Answer:

The enthalpy of reaction for the reaction of chlorine with ozone is -162.5 kJ.

Explanation:

$ClO ( g ) + O_3 ( g )\rightarrow Cl ( g ) + 2 O_2 ( g ),\Delta H^o_{1,rxn} =-122.8 kJ$ ..[1]

$2 O_3 ( g )\rightarrow 3O_2 ( g ),\Delta H^o_{2,rxn} = -285.3 kJ$ ..[2]

$O_3(g) + Cl(g)\rightarrow ClO (g)+O_2(g),\Delta H^o_{3,rxn}=?$ ..[3]

The enthalpy of reaction for the reaction of chlorine with ozone can be calculated by using Hess's law:

[2] - [1] = [3]

$\Delta H^o_{3,rxn}=\Delta H^o_{2,rxn}-\Delta H^o_{1,rxn}$

$=-285.3 kJ-(-122.8 kJ)=162.5 kJ$

The enthalpy of reaction for the reaction of chlorine with ozone is -162.5 kJ.

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3 years ago

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Ann [662]

Answer:

I think it both physical & chemical change :')

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hoa [83]

Answer:

$3.03 \: or \: 3\frac{1}{33} (in \: fration) \: hours$

Explanation:

33 miles takes 1 hour

1 " " 1/33 "

100 " 100×1/33

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