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3 years ago

Which atom is more reactive,sodium or sulfur, why

Chemistry

1 answer:

Leto [7]3 years ago

4 0

Answer:

Sodium is more reactive than sulfur.

Valency of Sodium is 1.

Valency of Sulfur is 2.

(Valency is the number of electrons in the outermost orbit of an atom which can be taken, given out or shared by an atom.)

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There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In

adell [148]

Answer:

The net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide is 523.2 kJ.

Explanation:

Step 1:

$CaC_2(s) + 2H_2O(g)\rightarrow C_2H_2(g) + Ca(OH)_2(s),\Delta H_1=414.0 kJ$ ...[1]

Step 2 :

$6C_2H_2(g) + 3CO_2(g) + 4H_2O(g)\rightarrow 5CH_2CHCO_2H(g) \Delta H_2=132.0kJ$ ..[2]

Adding 6 × [1] and [2]:

$6CaC_2(s) + 12H_2O(g)\rightarrow 6C_2H_2(g) + 6Ca(OH)_2(s)$

$6C_2H_2(g)+3CO_2(g)+16H_2O(g)\rightarrow 5CH_2CHCO_2H(g)$

we get :

$6CaC_2(s) + 8H_2O(g)+3CO_2(g)\rightarrow 5CH_2CHCO_2H(g)+ 6Ca(OH)_2(s),\Delta H'=?$

$\Delta H'=6\times \Delta H_1+\Delta H_2$

$\Delta H'=6\times 414.0 kJ+132.0kJ$

$\Delta H'=2,626 kJ$

Energy released on formation of 5 moles of acrylic acid = 2,626 kJ

Energy released on formation of 1 mole of acrylic acid:

$\frac{ 2,626 kJ}{5 } = 523.2 kJ$

7 0

3 years ago

For each relationship, write 2 conversion factors:

Burka [1]

C.

jk dont do it hehehehe

6 0

3 years ago

Which of the following conditions will result in a reaction that is spontaneous only at high temperatures?

Korolek [52]

You have to use the equation ΔG=ΔH-TΔS.
With that equation you know that a reaction with a positive change in enthalpy and positive change in entropy will only be spontaneous at high temperatures since ΔG needs to be negative for a reaction to be spontaneous.

I hopet this helps. Let me know if anything is unclear.

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2 years ago

A rock with a mass of 70 grams is dropped into a graduated cylinder with 30 mL of water in it. The water level rose to 35 mL cal

Scilla [17]

Answer:

Explanation:

70g/(35mL-30mL)=14g/mL

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3 years ago

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Compare and contrast the outer core and the inner core.

MaRussiya [10]

Outer Core:The outer part of the core is liquid and hot.It gets hotter the deeper you go (around 9000 degrees F in the center - your oven only goes to about 600 degrees F)It's so hot that rock melts. Melted rock is called magma.It's 1400 miles thick,and Earth's magnetic field results from movements in the outer core.Inner Core:It is only 800 miles to the center. It's shaped like a ball, or a sphere,And it's solid.They both have the same composition, which is Fe-Ni alloy. They are both high in temperature.

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3 years ago

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