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Readme [11.4K]
3 years ago
10

Which question would most likely be studied by a chemist?

Chemistry
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

fd

Explanation:

fff

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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
2 years ago
Which chemical formula corresponds to this structural formula? c6h6h6h2 c14h6 c6h12 c6h14
Alexxandr [17]

The chemical formula C₂H₆O, which is designated as option D, is equivalent to this structural formula.

<h3><u>What is a Chemical Formula ?</u></h3>

Chemical element symbols, numbers, and occasionally additional symbols like parentheses, dashes, brackets, commas, and plus (+) and minus () signs are used in a chemical formula to represent information about the chemical proportions of the atoms that make up a certain chemical compound or molecule.

  • An empirical formula represents by symbols, such as Na for sodium and Cl for chlorine, with subscripts that show the relative number of atoms in each.
  • The composition of any member of an entire class of compounds can be represented by a general formula, a sort of empirical formula.

To know more about Chemical formulas, refer to:

brainly.com/question/26388921

6 0
8 months ago
Read 2 more answers
A student observes chloroplasts in the micrograph of a cell.
allochka39001 [22]

Answer:

I think it's fungus or plant cell

6 0
2 years ago
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Which of the following metals is in a liquid state at room temperature?
SpyIntel [72]
The answer is c. hg (mercury)
5 0
3 years ago
What drives an electrolytic cell?
hodyreva [135]

Answer:

C. An external voltage source

Explanation:

An electrolytic cell converts electrical energy from an external voltage source into chemical energy that drives a reaction.

The external voltage source is usually a battery. This energy form generated from the battery helps to drive chemical reactions.

The process involves the decomposition of an ionic compound by means of current passed into the aqueous or molten form of the compound through conductors known as electrodes.

3 0
2 years ago
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