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marusya05 [52]
3 years ago
8

Do chemical equations with no reaction still have to be balanced

Chemistry
1 answer:
dangina [55]3 years ago
5 0

Answer:

The same number of atoms of each element must appear on both sides of a chemical equation. However, simply writing down the chemical formulas of reactants and products does not always result in equal numbers of atoms. You have to balance the equation to make the number of atoms equal on each side of an equation.

Explanation:

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What's the balanced equation for Iron and copper (II) sulfate solution.
Georgia [21]

Answer:

 2Fe +  3CuSO₄  →  Fe₂(SO₄)₃   +  3Cu

Explanation:

The reactants are:

   Iron  = Fe

  Copper (II) sulfate solution = CuSO₄

The reaction is given as:

            Fe +  CuSO₄  →  Fe₂(SO₄)₃   +  Cu

This is a single displacement reaction;

  Now let us balance the equation;

             aFe +  bCuSO₄  →  cFe₂(SO₄)₃   +  dCu

Conserving Fe;

                       a  = 2c

  Conserving  Cu;

                      b  = d

  Conserving S;

                      b  = 3c

  Conserving O;

                    4b  = 12c  

let b  = 1;

    c = \frac{1}{3}  

     d  = 1

     a  = \frac{2}{3}

Multiply through by 3 to get whole numbers;

  a  = 2, b = 3, c  = 1 and d  = 3

           2Fe +  3CuSO₄  →  Fe₂(SO₄)₃   +  3Cu

           

5 0
3 years ago
Electrons are important in chemical reactions. Since the elements in a family tend to behave similarly in chemical reactions, on
aleksklad [387]

Answer:

One may conclude that they have an identical number of electrons in their outermost shell, therefore the can be substituted for one another.

Explanation:

Elements in the same family tend to behave similarly in chemical reactions  because they have similar number of valence electrons in their outermost shell and they also have similar chemical properties.

Valence electrons are responsible for reactions between elements. The valence electron makes it possible for atoms to combine and react, therefore, elements in a family behave similarly in chemical reactions because they have an identical number of electrons in their outermost shell.

7 0
3 years ago
Definition of mass number​
riadik2000 [5.3K]
The total number of protons and neutrons in a nucleus
8 0
3 years ago
Read 2 more answers
The process by which rocks change shape under stress is
miss Akunina [59]
The answer is metamorphism
8 0
4 years ago
Calculate the density of a 38.6 g cube of gold with a volume of 2 cm³?
DedPeter [7]

Answer:

Density, d=19.3\ g/cm^3

Explanation:

Given that,

Mass of gold is 38.6 g

Volume, V = 2 cm³

We need to find the density of gold cube. The density of an object is defined as how much mass it has divided by its volume. So,

d=\dfrac{38.6\ g}{2\ cm^3}\\\\d=19.3\ g/cm^3

So, the density of the cube of gold is 19.3\ g/cm^3.

8 0
3 years ago
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