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3 years ago

What is electrolysis

Chemistry

1 answer:

cestrela7 [59]3 years ago

4 0

Answer:

Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell

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What is the chemical reaction for Mg + NaOH also with the ionic equations and subscripts?

Roman55 [17]

The chemical reaction of magnesium and sodium hydroxide would yield magnesium hydroxide and sodium. The chemical reaction is expressed as:
Mg(s)+ 2NaOH(aq)→Mg(OH)2(s)+2Na
In ionic form,
Mg(s) + 2Na+ + 2OH−(aq)→Mg(OH)2(s) + 2Na

5 0

3 years ago

Convert the average temperatures for each collected data point given below from °C to K. Plot the average cell potentials E (y-a

koban [17]

Answer:

Explanation:

The equation of above line , y = 0.0005x+ 0.458

This can be compared with y = mx+c

Hence slope, m = 0.0005 and Y-intercept, c = 0.458

Or it can be plotted manually where straight line has to be drawn touching maximum number of data points. After drawing a straight linear line, we need to take any two points from the straight line and slope is calculated

Slope,

$m = \frac{y_2-y_1}{x_2-x_1}$

and y -intercept is calculated using extraplotting backwards such that it touches the Y-axis. the point where straight line touches Y-axis is Y-intercept (c).

Plot the average cell potentials E (y-axis) vs T (x-axis). image attached

7 0

3 years ago

What is the valence of Hydrogen, Oxygen, Nitrogen, Chlorine, Carbon and Silicon

-Dominant- [34]

They are all substances

3 0

3 years ago

Read 2 more answers

Both obsidian and pumice are formed from which of the following ?

Mashutka [201]

Answer:

option D= volcanoes

Explanation:

Obsidian:

It is igneous rock. It is made when molten rock material cool very rapidly in such a way that atoms could not arrange themselves and acquire amorphous form. It is also called mineraloid.

1. Mostly it is found in black color but it could be present in green or brown color.

2. In the form of glass obsidian are unstable and start to crystallize.

3. Obsidian are commonly found in New Zealand, Hungry, Russia, Canada, Italy, Argentine, Japan, Chile, Kenya, Peru and United States.

4. older obsidian can not be found because these glassy rocks destroyed very rapidly.

5. Obsidian are used in surgical tools for cutting.

6. obsidian are also used in jewelry.

Pumice:

pumice is volcanic rock. it is formed from the lava having high amount of gases and water content. the gas escape and frothy lava cool very rapidly and form very lighter rock material, called pumice.

1. it is lighter in color because of high content of silica.

2. its crushing material produce fine powder, called volcanic ash.

3. its density is very low that's way it floats on the surface of water.

4. it is used in the manufacturing of cement and also in pencil erasers.

5. it is found in Greece, Italy, Chile, Turkey, Russia , Tran, Syria ans United States.

6 0

3 years ago

2NaOH+CO2----->Na2CO3+H2O

kondaur [170]

Answer:

13.2 g Na2CO3

Explanation:

Convert 10.0 g NaOH to mol.

10.0 g x 1 mol/39.997 g = 0.250 mol

Use mol ration given by the equation: 2 mol NaOH to 1 mol Na2CO3

0.250 mol NaOH x 1 mol Na2CO3/2 mol NaOH = 0.125 mol Na2CO3

Finally, convert the moles of Na2CO3 to grams.

0.125 mol Na2CO3 x 105.99 g/1 mol = 13.2 g

8 0

4 years ago

What is electrolysis ​

What is electrolysis