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3 years ago

In a dehydration reaction, . in order for this to occur water is .

1 answer:

3 0

In a dehydration reaction monomers are joined to become a polymer, in order for this to occur water is removed. Dehydration itself implies removal of water and this makes the molecules bind with other identical molecules making polymers. This bonding can be brought back with process of hydrolysis which breaks the polymers to monomers.

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Consider the following reactions. (Note: (s) = solid, (l) = liquid, and (g) = gas.) ½H2(g) + ½I2(g) → HI(g), ΔH = +6.2 kcal/mole

BARSIC [14]

½H2(g) + ½I2(g) → HI(g) ΔH = +6.2 kcal/mol
or...
½H2(g) + ½I2(g) + 6,2kcal/mole → HI(g)
________
21.0 kcal/mole + C(s) + 2S(s) → CS2(l)
or...
C(s) + 2S(s) → CS2(l) ΔH = +2,1 kcal/mole
_________
ΔH > 0 ----------->>> ENDOTHERMIC REACTIONS

4 0

3 years ago

Read 2 more answers

A gas system contains 2.00 moles of O2 and CO2 gas, has an initial temperature of 25.0 oC and is under 1.00 atm of pressure. If

Ainat [17]

Answer:

$V_2=52.2L$

Explanation:

Hello there!

In this case, by bearing to to mind the given conditions, it is firstly possible to determine the initial volume of the closed system via the ideal gas equation:

$PV=nRT\\\\V=\frac{2.00mol*0.08206\frac{atm*L}{mol*K}*298.15K}{1.00 atm} \\\\V=48.9L$

Which is V1 in the Charles' law:

$\frac{T_2}{V_2} =\frac{T_1}{V_1}$

And of course, T1 is 298.15 (25+273.15). Therefore, by solving for V2 as the final volume, we obtain:

$V_2=\frac{V_1T_2}{T_1}\\\\V_2=\frac{48.9L*(45+273.15)K}{(25+273.15)K} \\\\V_2=52.2L$

Best regards!

8 0

3 years ago

Which statement correctly contrasts science and pseudoscience

mojhsa [17]

brainly.com/question/1470976 Hope this helps!

8 0

3 years ago

Which is a pure substance? soda gasoline salt water carbon dioxide

hram777 [196]

Answer: Carbon dioxide is a pure substance.

Explanation: A pure substance is defined when a substance has a single type of molecule. If more than 1 type of molecule is present in a substance, then it is considered as a mixture.

Soda is basically a mixture of water and carbon dioxide. More than 1 type of molecule is present.

Gasoline is a mixture of may gases. More than 1 type of molecule is present.

Salt water contains salt and water molecules, hence it is considered as a mixture.

Carbon dioxide has only 1 type of molecule which is $CO_2$ molecules. Hence, it is a pure substance.

8 0

3 years ago

Read 2 more answers

I need the answers of these

Anni [7]

Answer:

Hope this helps :D

Explanation:

Metal: Aluminum and Copper

Non-Metal: Hydrogen and Flourine

Acid: Sulfuric Acid and Phosphoric Acid

Alkali Metals: Hydrogen and Lithium

Compounds: Water and Carbon Dioxide

Elements: Carbon and Oxygen

4 0

2 years ago

In a dehydration reaction, ________. in order for this to occur water is ________.

In a dehydration reaction, . in order for this to occur water is .