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miskamm [114]
4 years ago
10

PLEASE HELP WILL REWARD BRAINLIEST

Chemistry
1 answer:
klasskru [66]4 years ago
6 0
The first option is the correct one.
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Balance the double replacement: <br> Mn(SO4)2 + K2S2O3 =
Firlakuza [10]

Answer:

        Mn(SO₄)₂ + 2 K₂S₂O₃ ----------> Mn(S₂O₃)₂ + 2 K₂SO₄

Explanation:

Reaction Given:

              Mn(SO₄)₂ + K₂S₂O₃ =

Balance Equation = ?

Solution:

Balance Chemical Equation:

A balanced chemical equation is that in which the number of the reactant atoms equal to the number of the product atom.

For example if the Sulfur at the reactant side is 6, the number of Sulfurmust be 6 on the product side.

First we Complete the reaction

                  Mn(SO₄)₂ + K₂S₂O₃ ----------> Mn(S₂O₃)₂ + K₂SO₄

Check the chemical equation and count the number of atoms at the reactant side and product side.

If the number of atoms of the reactants equal to the number of atoms of products then the reaction is balanced but if not equal, then reaction is not balanced

Balancing is an trial and error process to get a balance reaction.

First we count the number of atoms of reactant and product

             Mn(SO₄)₂ + K₂S₂O₃ ----------> Mn(S₂O₃)₂ + K₂SO₄

Number of atoms of Reactant:

Mn = 1

S = 4

O = 7

K = 2

Number of atoms of Product:

Mn = 1

S = 5

O = 10

K = 2

So this is not a balance equation as the atoms of the reactant atoms not equal to the number of the product atoms.

As there are 4 Sulfur, and 7 oxygen atoms at reactant side but 5 Sulfur, and 10 oxygen atoms at the product side so we balance this along with other

Balanced Equation:

          Mn(SO₄)₂ + 2 K₂S₂O₃ ----------> Mn(S₂O₃)₂ + 2 K₂SO₄

Now count the number of atoms of reactant and product

Number of atoms of Reactant:

Mn = 1

S = 6

O = 14

K = 4

Number of atoms of Product:

Mn = 1

S = 5

O = 10

K = 2

Now this reaction is balanced as the atoms of the reactant atoms equal to the number of the product atoms.

So,

the Coefficient of  K₂S₂O₃ and K₂SO₄ is 2 in balanced equation

4 0
3 years ago
The atoms of which element will NOT typically form ions?
tino4ka555 [31]
He. it is a noble gas and therefore has a full outer shell of electrons. it does not need to gain or loose any.
7 0
4 years ago
Read 2 more answers
Each element has a unique name. How else can
Otrada [13]

Answer:

C. by its chemical Symbol

Hope this helps!

5 0
3 years ago
how many liters of a 60% antifreeze solution must be added to 8L of a 10% antifreeze solution to produce a 20% antifreeze soluti
Tasya [4]

Answer: 2Liters

Explanation:

The expression used will be :

M_1V_1+M_2V_2=M_3V_3

where,

M_1 = concentration of first antifreeze= 60%

M_2 = concentration of second  antifreeze= 10%

V_1 = volume of first antifreeze = x L

V_2 = volume of second antifreeze = 8 L

M_3 = concentration of final antifreeze solution= 20%

V_3 = volume of final antifreeze = (x+8) L

Now put all the given values in the above law, we get the volume of  antifreeze added

60\times x+10\times 8=20\times (x+8)

x=2L

Therefore, the volume of 60% antifreeze solution that must be added is 2L

5 0
3 years ago
Describing Chemical Reactions
nadya68 [22]

Answer:

mass of Liquid 1 + mass of Liquid 2 = mass of solid + mass of gas

Explanation:

iquid 1 reacts with Liquid 2, producing a solid and a gas. Using this scenario, which supports the law of conservation

of mass?

EEEE

O mass of Liquid 1 + mass of solid = mass of Liquid 2 + mass of gas

O mass of Liquid 1 - mass of solid = mass of Liquid 2-mass of gas

O mass of Liquid 1 - mass of Liquid 2 = mass of solid + mass of gas

O

based on the law of the conservation of matter, the sum of the masses of the reactants must equal  the sum of the masses of the products

so the correct answer is

mass of Liquid 1 + mass of Liquid 2 = mass of solid + mass of gas

7 0
3 years ago
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