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3 years ago

How do you balance the following solution Zn(s)+HCI(aq)—>ZnCI2 (aq) + H2(g)

Chemistry

1 answer:

Ierofanga [76]3 years ago

8 0

Answer: The atoms of every element on both the sides of the reaction must be same.

Explanation:

We are given a chemical equation and we need to balance it. Every equation follows Law of Conservation of mass.

This law states that in a chemical reaction, the number of atoms of each element must be same on both the sides of the equation.

For the given chemical equation:

$Zn(s)+HCl(aq)\rightarrow ZnCl_2(aq)+H_2(g)$

On reactant side:

Number of zinc atoms = 1

Number of hydrogen atoms = 1

Number of chlorine atoms = 1

On product side:

Number of zinc atoms = 1

Number of hydrogen atoms = 2

Number of chlorine atoms = 2

As, the number of hydrogen and chlorine atoms on reactant and product side is not same, so we need to add a stoichiometric coefficient in-front of HCl on the reactant side. The balanced chemical equation becomes:

$Zn(s)+2HCl(aq)\rightarrow ZnCl_2(aq)+H_2(g)$

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3 years ago

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3 years ago

Read 2 more answers

The temperature on a distant, undiscovered planet is expressed in degrees B. For example, water boils at 180 ∘ B and freezes at

marin [14]

Answer:

40.3∘C

Explanation:

At planet B;

Water boils = 180∘C

Water freezes = 50∘C

In this planet the temperature difference = 180 - 50 = 130 compared to earth where the temperature difference is; 100 - 0 = 100

This means;

130 ∘C = 100 ∘C

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4 years ago

N2(g) +O2(g) —> N2O5(g)

Alex Ar [27]

Answer:

2N₂(g) + 5O₂(g) ----------> 2N₂O₅(g)

Nitrogen N2(g) get an coefficient of 2.

Explanation:

Reaction Given

N₂(g) +O₂(g) —> N₂O₅(g)

Balanced Equation =?

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 Nitrogen at the reactant side is 3, the number of Nitrogen must be 3 on the product side.

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

Number of atoms of Reactant:

N = 2

O = 2

Number of atoms of Product:

N = 2

O = 5

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

Nitrogen atoms are 2 on both reactant and product side

But

Oxygen atoms are 2 on reactant and 5 on product side that is not equal.

Now balance the equation:

2N₂(g) + 5O₂(g) ----------> 2N₂O₅(g)

Now again count the number of atoms of reactant and product

Number of atoms of Reactant:

N = 4

O = 10

Number of atoms of Product:

N = 4

O = 10

So now the atoms are equal on both reactant and product side.

By balancing the reaction nitrogen N2(g) get an coefficient of 2.

5 0

3 years ago