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quester [9]
3 years ago
13

What does the empirical formula of a compound represent?

Chemistry
1 answer:
Zina [86]3 years ago
4 0
The empirical formula represents the compound's formula with the lowest possible mole ratios between the elements.
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Blast furnaces extract pure iron from the iron(III) oxide in iron ore in a two step sequence.In the first step, carbon and oxyge
Alona [7]

Answer:

The net chemical equation for the production of iron from carbon, oxygen and iron(III) oxide:

2Fe_2O_3 (s) +6C (s) + 3O_2 (g)\rightarrow 4Fe (s) + 6CO_2 (g)

Explanation:

Step 1: Carbon and oxygen react to form carbon monoxide:

2C (s) + O_2 (g)\rightarrow 2CO (g)..[1]

Step 2: Iron(III) oxide and carbon monoxide react to form iron and carbon dioxide:

Fe_2O_3 (s) + 3CO (g)\rightarrow 2Fe (s) + 3CO_2 (g)..[2]

The net chemical equation for the production of iron from carbon, oxygen and iron(III) oxide can be obtained by :

3 × [1] + 2 × [2]

2Fe_2O_3 (s) + 6CO (g)+6C (s) + 3O_2 (g)\rightarrow 4Fe (s) + 6CO_2 (g)+6CO(g)

CO gas will gas cancel out form both sides ans we will get the net chemical equation:

2Fe_2O_3 (s) +6C (s) + 3O_2 (g)\rightarrow 4Fe (s) + 6CO_2 (g)

According to reaction, 2 moles of ferric oxide reacts with 6 moles of carbon and 3 moles of oxygen gas to give 4 moles of iron and 6 moles pf carbon dioxide gas.

8 0
4 years ago
Does changing the number of neutrons change the identity of the element you have built?
Alina [70]

Answer:<em>if u change the number of neutrons u will .get an isotope of the same element. </em>

Explanation: <em>neutron can make an atom radioactive</em>

5 0
3 years ago
HELPPPPP WILL MARK BRAINLIEST
ivolga24 [154]

Answer:   a.b.d

Explanation:

6 0
3 years ago
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Using the accompanying chart, calculate the volume of a Densities of Group 14 Elements tin block that has a mass of 95.04 grams
saw5 [17]

<u>Answer:</u> The volume of given mas of tin block at STP is 13.0cm^3

<u>Explanation:</u>

To calculate volume of of the substance, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

We are given:

Mass of tin = 95.04 g

Density of tin = 7.31g/cm^3

Putting values in above equation, we get:

7.31g/cm^3=\frac{95.04g}{\text{Volume of tin}}\\\\\text{Volume of tin}=\frac{95.04g}{7.31g/cm^3}=13.0cm^3

Hence, the volume of given mas of tin block at STP is 13.0cm^3

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4 years ago
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frosja888 [35]

Answer:

the first option is the correct answer

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2 years ago
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