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vlada-n [284]
3 years ago
14

Which of the following would have the most difficult time holding onto heat?

Chemistry
2 answers:
egoroff_w [7]3 years ago
6 0

Answer:

carbon

Explanation:

cabonis not a conductor of heat

baherus [9]3 years ago
3 0
Carbon

carbonn is the correct answer
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How many electrons are shared by a triple <br> bond?
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6

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3 years ago
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What mass of iron(II) oxide must be used in the reaction given by the equation below to release 44.7 kJ? 6FeO(s) + O2(g) =&gt; 2
zavuch27 [327]

<u>Answer:</u> The mass of iron (II) oxide that must be used in the reaction is 30.37

<u>Explanation:</u>

The given chemical reaction follows:

6FeO(s)+O_2(g)\rightarrow 2Fe_3O_4(s);\Delta H^o=-635kJ

By Stoichiometry of the reaction:

When 635 kJ of energy is released, 6 moles of iron (II) oxide is reacted.

So, when 44.7 kJ of energy is released, \frac{6}{635}\times 44.7=0.423mol of iron (II) oxide is reacted.

Now, calculating the mass of iron (II) oxide by using the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Moles of iron (II) oxide = 0.423 moles

Molar mass of iron (II) oxide = 71.8 g/mol

Putting values in above equation, we get:

0.423mol=\frac{\text{Mass of FeO}}{71.8g/mol}\\\\\text{Mass of FeO}=(0.423mol\times 71.8g/mol)=30.37g

Hence, the mass of iron (II) oxide that must be used in the reaction is 30.37

7 0
3 years ago
Nobody answers anymore but it's worth a shot, i will give branliest tho.
Juliette [100K]
Chemical for both i think, i didn’t understand the second question.
7 0
2 years ago
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