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miv72 [106K]
3 years ago
5

In two or more complete sentences explain how to balance the chemical equation and classify its reaction type.

Chemistry
1 answer:
sleet_krkn [62]3 years ago
8 0

<u>Answer:</u> The given chemical reaction is a single displacement reaction.

<u>Explanation:</u>

Single displacement reaction is defined as the reaction in which more reactive metal displaces the less reactive metal from its chemical reaction.

The reactivity of metal is determined by a series known as reactivity series. The metals lying above in the series are more reactive than the metals which lie below in the series.

A+BC\rightarrow AC+B

Metal A is more reactive than Metal B.

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on the product side. These equations follow law of conservation of mass.

For the given chemical reaction:

2Al(s)+3CuSO_4(aq.)\rightarrow Al_2(SO_4)_3(aq.)+3Cu(s)

By Stoichiometry of the reaction:

2 moles of aluminium metal reacts with aqueous solution of copper sulfate to produce 1 mole of aqueous solution of aluminium sulfate and 3 moles of copper metal.

Hence, the given chemical reaction is a single displacement reaction.

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The ph of a solution containing 0.818 M acetic acid<br> (ka1.76*10-5) ans 0.172 M sodium acetate is?
kvasek [131]

Explanation:

It is known that the relation between pH and pK_{a} is as follows.

              pH = pK_{a} + log \frac{[salt]}{[acid]}

and,     pK_{a} = -log K_{a}

Hence, first we will calculate the value of pK_{a} as follows.

                   pK_{a} = -log K_{a}

                               = -log (1.76 \times 10^{-5}

                               = 4.75

Now, we will calculate the value of pH as follows.

              pH = pK_{a} + log \frac{[\text{sodium acetate}]}{\text{acetic acid}}

                    = 4.75 + log \frac{0.172}{0.818}      

                    = 4.75 + (-0.677)

                    = 4.07

Therefore, we can conclude that the pH of given solution is 4.07.

5 0
3 years ago
Write the equation of the chemical reaction of burning glucose (C6H12O6)​
kotegsom [21]

Answer:

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Explanation:

8 0
3 years ago
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How many moles of H2O2 are needed to react with 1.07 moles of N2H4?
I am Lyosha [343]

Answer:

2.14 moles of H₂O₂ are required

Explanation:

Given data:

Number of moles of H₂O₂ required = ?

Number of moles of N₂H₄ available = 1.07 mol

Solution:

Chemical equation:

N₂H₄  +   2H₂O₂       →   N₂ +  4H₂O

now we will compare the moles of H₂O₂ and N₂H₄

                          N₂H₄     :      H₂O₂  

                            1           :        2

                            1.07      :         2×1.07 = 2.14 mol

                   

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3 years ago
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Explanation:

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When different elements react, their atoms join with other atoms.
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