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2 years ago

8

Rico and Bree are camping and have potatoes wrapped in foil to eat. Bree put her potato in the campfire for a while, but Rico di

d not. Now Bree’s potato has a high temperature. What is the difference between the molecules of the two potatoes?

1 answer:

inn [45]2 years ago

5 0

Answer:

There is no difference because both potatoes are made of the same type of molecules.

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How many milliliters of 0.200 M NH4OH are needed to react with 12.0 mL of 0.550 M FeCl3?

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Answer:

9.9 ml of 0.200M NH₄OH(aq)

Explanation:

3NH₄OH(Iaq) + FeCl₃(aq) => NH₄Cl(aq) + Fe(OH)₃(s)

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3 years ago

The metal in an ionic compound is the Anion<br> True<br> False

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Answer:

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3 years ago

Determine from the balanced chemical reaction if the derived mole ratio is correct or incorrect.

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Answer:

Balanced reaction: $4Zn+10HNO_{3}\rightarrow 4Zn(NO_{3})_{2}+N_{2}O+5H_{2}O$

The mole ratio (4 moles Zn/5 moles $H_{2}O$ ) is correct.

Explanation:

Oxidation: $Zn\rightarrow Zn(NO_{3})_{2}$

Balance N and O: $Zn+2NO_{3}^{-}\rightarrow Zn(NO_{3})_{2}$

Balance charge: $Zn+2NO_{3}^{-}-2e^{-}\rightarrow Zn(NO_{3})_{2}$ ................(1)

Reduction: $HNO_{3}\rightarrow N_{2}O$

Balance N: $2HNO_{3}\rightarrow N_{2}O$

Balance H and O: $2HNO_{3}+8H^{+}\rightarrow N_{2}O+5H_{2}O$

Balance charge: $2HNO_{3}+8H^{+}+8e^{-}\rightarrow N_{2}O+5H_{2}O$ ............. (2)

[ $4\times$ Equation-(1)] + [Equation-(2)]:

$4Zn+8NO_{3}^{-}+2HNO_{3}+8H^{+}\rightarrow 4Zn(NO_{3})_{2}+N_{2}O+5H_{2}O$

$\Rightarrow 4Zn+10HNO_{3}\rightarrow 4Zn(NO_{3})_{2}+N_{2}O+5H_{2}O$

So, balanced reaction: $4Zn+10HNO_{3}\rightarrow 4Zn(NO_{3})_{2}+N_{2}O+5H_{2}O$

Hence the mole ratio (4 moles Zn/5 moles $H_{2}O$ ) is correct.

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3 years ago