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trapecia [35]
3 years ago
7

Balance the equ. representing the reaction between iron

Chemistry
1 answer:
denis-greek [22]3 years ago
7 0

Answer:

Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂

Explanation:

There are many ways to balance a chemical equation. In this case, I will show you the algebraic method:

The first step is assign a letter to each compound:

a Fe₂O₃ + b CO → c Fe + d CO₂

Then, you must write the balance equations for each atom, thus:

<em>Fe: 2a = c</em>

<em>C: b = d</em>

<em>O: 3a + b = 2d</em>

The last step is assign a value to a letter. I, for example, will say that <em>a is 1, </em>and then find the values for the others letters, thus:

<em>Fe: 2a = c </em>if <em>a=1; c=2</em>

<em>O: 3a + b = 2d </em>if <em>a=1 → 3+b = 2d</em>

As b = d → <em>3+d = 2d; 3 = 2d - d; </em>3=d and 3=b

Thus, the balanced equation is:

Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂

I hope it helps!

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Was the french revolution driving force behind the metric system?
goblinko [34]

Answer:

yes, they were

Explanation:

The history of the metric system began in the Age of Enlightenment with notions of length and weighttaken from natural ones, and decimal multiples and fractions of them. The system became the standard of France and Europe in half a century. Other dimensions with unity ratios[Note 1] were added, and it went on to be adopted by the world.

7 0
3 years ago
What are the advantages and disadvantages of using renewable and nonrenewable energy resources?
nikklg [1K]

Answer:an advantage for using a renewable resources is the it really dont take up oil a it could be renewed one disadvantage is that it cost alot

on advantage for a non renewable is that it doesnt cost alot and one disadvantage is that it can't be renewed

Explanation:

5 0
3 years ago
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I’m sorry but where’s the worksheet lol......
7 0
3 years ago
Read 2 more answers
When a solution of ammonium chloride, NH4Cl, is added to a solution of lead (II) nitrate , Pb(NO3)2, a white precipitate, PbCl2,
slavikrds [6]

Answer:

B) 2NH_4^+_{(aq)}+2Cl^-_{(aq)}+Pb^{2+}_{(aq)}+2NO_3^-_{(aq)}\rightarrow PbCl_2_{(s)}+2NH^{4+}_{(aq)}+2NO_3^-_{(aq)}

Explanation:

The total ionic equation contains all the species in the reaction in the ionic form.

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

Spectator ions are also written in total ionic equations.

The chemical equation is:

2NH_4Cl_{(aq)}+Pb(NO_3)_2_{(aq)}\rightarrow PbCl_2_{(s)}+2NH_4NO_3_{(aq)}

The total ionic equation is -

2NH_4^+_{(aq)}+2Cl^-_{(aq)}+Pb^{2+}_{(aq)}+2NO_3^-_{(aq)}\rightarrow PbCl_2_{(s)}+2NH^{4+}_{(aq)}+2NO_3^-_{(aq)}

5 0
4 years ago
If 45.0 mL of 6.00M HCl is added to 130 mL of H2O, Determine the molarity of the final solution. (show work)
Ivahew [28]

2.07 M is the molarity of the final solution if 45.0 ml of 6.00M HCl is added to 130 ml of H_{2}O.

Explanation:

Data given:

volume of HCl, V1 = 45 ml

molarity of the HCl solution, M1 = 6 M

final volume of the HCl solution after water is added, V2 = 130 ml

final molarity M2 =?

After the dilution, the molarity of the new solution can be found by using the formula:

M1V1 = M2V2

here M1 and V1 are the molarity and volume for concentrated solution, M2 and V2 represents the diluted solution's molarity and volume.

Applying the formula after rearranging the equation, we get

M2 = \frac{M1V1}{V2}

M2 = \frac{6X45}{130}

M2 = 2.07 M

The final molarity of the HCl solution is 2.07 M

4 0
4 years ago
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