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tangare [24]
3 years ago
8

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

Chemistry
2 answers:
Dafna11 [192]3 years ago
4 0

Answer:

Hi! In this case, the reactioncan be correctly balance according to this: 2Al(s) + 3CuSO4(aq) –> Al2(SO4)3(aq) + 3Cu(s).

Explanation:

In this particulary reaction,two semi-reactions happens.

One involving the metallic aluminum that suffers an oxidation reaction:

Al (s) -> Al3 + (aq) + 3e–

and another is a reduction reaction involving copper;

2e– + Cu2 + (aq) -> Cu (s)

Alexxandr [17]3 years ago
4 0

Answer:

2Al(s) + 3CuSO4(aq). --------> Al2(SO4)3(aq) + 3Cu(s)

Explanation:

This is a displacement reaction. Aluminum, being higher in the electrochemical series (higher electrode potential) displaces copper from its aqueous salt to give an aluminum salt and copper metal.

The equation is balanced with the formula of the products in mind. Since the products must be Al2(SO4)3 and 3Cu, then the stoichiometric coefficient of aluminum must be 2 on the reactant side and that of CuSO4 must be 3 on the reactants side.

This fulfils the general principle for balancing reaction equations which states that, the number of atoms of each element on the right hand side of the reaction equation, must be the same as the number of atoms of the same element on the left hand side of the reaction equation.

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Pleaseeeeeeeeeeee help this is due today
Orlov [11]

The final temperature of the sample of gas is 689.65 Kelvin.

<h3>What is the relation between temperature and pressure?</h3>

Relation between the temperature and pressure will be represented by the ideal gas equation PV = nRT, and for this question required equation is:

P₁/T₁ = P₂/T₂, where
P₁ & T₁ are the pressure and temperature of the initial sample.

P₂ & T₂ are the pressure and temperature of the final sample.

Pressure is in mmHg and on putting values from the question on the above equation, we get

T₂ = (810)(390.8) / (760) = 416.5 degree C = 689.65K

Hence required temperature of the sample is 689.65K.

To know more about ideal gas equation, visit the below link:
brainly.com/question/555495

#SPJ1

7 0
2 years ago
Which statement is true about a base when it reacts with another substance?
Nostrana [21]

Answer:   a. It receives a hydrogen ion.

Explanation:  Base is a species which is capable of donating its negative quantity and accepting the positive one.

For example, ammonia is considered as a base because it is capable of donating its lone pairs of electrons and can accept an proton as well.

Here, out of the given options, Hydrogen H^{+} is a proton which is acting as a positive species and hydroxide ion OH^{-} is a negative species.

Thus, option (A) is the correct answer as it will receive a hydrogen ion from another base making itself a conjugate acid.

4 0
2 years ago
Read 2 more answers
How is the le chatelier's principle used to ensure the reaction will go to completion?
murzikaleks [220]

Answer:

This done such that when a reaction is in equilibrium and disturb by and external force which would prevent its completion its adjust so as to offset that external force and still go on to completion

4 0
3 years ago
18 g of copper is mixed with silver nitrate in water. How much copper ll nitrate will formed?
Lorico [155]

Answer:

Mass = 112.54 g

Explanation:

Given data:

Mass of copper = 18 g

How much copper(II) nitrate formed = ?

Solution:

Cu + 2AgNO₃  →  Cu(NO₃)₂ + 2Ag

Number of moles of copper:

Number of moles = mass/ molar mass

Number of moles = 18 g/ 29 g/mol

Number of moles = 0.6 mol

Now we will compare the moles of Cu with Cu(NO₃)₂ .

             Cu        :        Cu(NO₃)₂

              1           :             1

           0.6          :           0.6

Mass of Cu(NO₃)₂ :

Mass = number of moles × molar mass

Mass = 0.6 mol × 187.56 g/mol

Mass = 112.54 g

7 0
3 years ago
Which TWO statements describe the ocean floor giving brainliest
lesya [120]

Answer:

A and B

Explanation:Ap3x approved :)

6 0
3 years ago
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