What is the density of aluminum?

Below are shown, for five metals, reduction reactions and standard electrode potential values. which of these metals is the leas

just olya [345]

Above question is incomplete. Complete question is attached below
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Solution:
Reduction potential of metal ions are provided below. Higher the value to reduction potential, greater is the tendency of metal to remain in reduced state.

In present case, reduction potential of Au is maximum, hence it is least prone to undergo oxidation. Hence, it is least reactive.

On other hand, reduction potential of Na is minimum, hence it is most prone to undergo oxidation. Hence, it is most reactive.

7 0

4 years ago

What is the difference between melting and evaporation?

Ganezh [65]

Because i think melting is kinda the biproduct of evaporation.

3 0

3 years ago

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lilavasa [31]

1.66 M is the concentration of the chemist's working solution.

<h3>What is molarity?</h3>

Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution. Molarity is also known as the molar concentration of a solution.

In this case, we have a solution of Zn(NO₃)₂.

The chemist wants to prepare a dilute solution of this reactant.

The stock solution of the nitrate has a concentration of 4.93 M, and he wants to prepare 620 mL of a more dilute concentration of the same solution. He adds 210 mL of the stock and completes it with water until it reaches 620 mL.

We want to know the concentration of this diluted solution.

As we are working with the same solution, we can assume that the moles of the stock solution will be conserved in the diluted solution so:

$n_1$ = $n_2$ (1)

and we also know that:

n = M x $V_2$

If we replace this expression in (1) we have:

$M_1$ x $V_1$ = $M_2$ x $V_2$

Where 1, would be the stock solution and 2, the solution we want to prepare.

So, we already know the concentration and volume used of the stock solution and the desired volume of the diluted one, therefore, all we have to do is replace the given data in (2) and solve for the concentration which is $M_2$ :

4.93 x 210 = 620 x $M_2$

$M_2$ = 1.66 M

This is the concentration of the solution prepared.

Learn more about molarity here:

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6 0

2 years ago

Choose all of the processes from below which describe changes which are independent of the path by which the change occurs.

aniked [119]

You can find this on google most likely

4 0

3 years ago

What type of energy does water gain as it sits in the sun?

finlep [7]

Answer:

A. Heat energy

Explanation:

6 0

3 years ago