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Ivan
3 years ago
12

PLS HELP ASAP

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

Answer:

B) burning wood

Explanation:

Phantasy [73]3 years ago
6 0

im pretty sure it is burning wood

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When FeC13 is ignited in an atmosphere of pure oxygen, this reaction takes place. 4FeCl3(sJ 30lgJ ~ 2F~0 (sJ 6Cl2(gJ If 3.00 mol
oksano4ka [1.4K]

Answer : The reagent present in excess and remains unreacted is, O_2

Solution : Given,

Moles of FeCl_3 = 3.00 mole

Moles of O_2 = 2.00 mole

Excess reagent : It is defined as the reactants not completely used up in the reaction.

Limiting reagent : It is defined as the reactants completely used up in the reaction.

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

2FeCl_3(s)+O_2(g)\rightarrow 2FeO(s)+3Cl_2(g)

From the balanced reaction we conclude that

As, 2 moles of FeCl_3 react with 1 mole of O_2

So, 3.00 moles of FeCl_3 react with \frac{3.00}{2}=1.5 moles of O_2

From this we conclude that, O_2 is an excess reagent because the given moles are greater than the required moles and FeCl_3 is a limiting reagent and it limits the formation of product.

Hence, the reagent present in excess and remains unreacted is, O_2

4 0
3 years ago
Determine if the equation is endothermic or exothermic examples
Fittoniya [83]
There are a couple of ways todetermine if a reaction is exothermic or endothermic. Endothermic meaning that heat is added to the reaction to make the reactants interact and exothermic meaning heat is released during the reaction between the two reactants.


In endothermic reactions you can find a triangle above the arrow.
6 0
3 years ago
Describe two ways in which a cell grows.
adelina 88 [10]

Answer:

There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells.

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2 years ago
What kind of bond is the result of the transfer of an electron?
serious [3.7K]

Answer:

Answer choice A

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5 0
3 years ago
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The spectrophotometer really measures the percent of light that is transmitted through the solution. The instrument then convert
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Hey there!:

absorbance = log 100 - log Transmitance

absorbace = 0.85

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transmitance =  10 ^ ( - 0.425 )

transmitance = 0.376

4 0
3 years ago
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