All categories

2 years ago

How is the air in tube 4 kept out of contact with the nail

Chemistry

1 answer:

klasskru [66]2 years ago

7 0

Answer:

If you ever wonder why nails rust, it's because rusting happens when a metal is exposed to oxygen. The molecules of iron on the surface of the nail exchange atoms with the oxygen in the air and produce a new substance, the reddish-brown ferrous oxide, a.k.a. rust.

Explanation:

please mark this answer as brainliest

You might be interested in

You have 16.0 g of some compound and you perform an experiment to remove all of the oxygen, 11.2 g of iron is left. What is the

Makovka662 [10]

The empirical formula of this compound is $Fe_2O_3$

<h3>Empirical formula </h3>

To calculate the empirical formula of a compound, the value of moles of each element is needed.

As we have the information of the mass value, we will use the molar mass expression, which corresponds to:

$MM_O = 16g/mol\\MM_Fe = 55.8g/mol$

$MM = \frac{m}{mol}$

$16 = \frac{4.8}{x}$

$x = 0.3mol$

$55.8=\frac{11.2}{x}\\x = 0.2$

As the value of the empirical formula must be an integer, simply multiply the two values by a common factor:

$O = 0.3 \times 10 = 3\\Fe = 0.2 \times 10 = 2$

$Fe_2O_3$

So, the empirical formula of this compound is $Fe_2O_3$ .

Learn more about empirical formula: brainly.com/question/1247523

3 0

1 year ago

Solve for Va<br><br>MaVa=MbVb

PolarNik [594]

Answer:

Va = (MbVb)/Ma

Explanation:

Divide both sides by Ma and voila!

8 0

2 years ago

Write short note on<br>vegetation

bulgar [2K]

Answer:

vegetation is highly effective although we used it and it is surrounded around us a note would be that vegetation is general term for plant life of a region and there are 5 different types

Explanation:

6 0

2 years ago

Is aluminum foil an element, compound or mixture

lora16 [44]

It is an element. Aluminun foil is aluminum prepared in thin leaves.

3 0

3 years ago

Read 2 more answers

A strong acid can also be described as a very weak .

faltersainse [42]

I guess is weak alkaline. when the substance is more acidic, there will be less alkalinity

4 0

3 years ago

How is the air in tube 4 kept out of contact with the nail​

How is the air in tube 4 kept out of contact with the nail