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Leni [432]
3 years ago
13

State two essential conditions for rusting of iron. List two methods of protecting iron from rusting?​

Mathematics
2 answers:
deff fn [24]3 years ago
8 0
<h3>- - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - </h3>

➷ The presence of Oxygen and the presence of slightly acidic water are essentials for rusting of Iron. To protect Iron from rusting, 'grease coating' can be used. This stops the oxygen and water from being able to make direct contact with the Iron. Also, galvanization can be tried. This is where the Iron is coated in a protective zinc coating to prevent it from rusting.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ Hannah ♡

spin [16.1K]3 years ago
7 0

Answer:

the rusting of iron would need something very acidic to form iron oxide. and oxygen and water combines which is the process of oxidation.

magnesuim is well known metal that prevent rusting so it would be a great idea to store your iron metal next to a magnesuim metal.  and thats why iron is coated or covered with a metal called zinc it prevents the oxygen and water from entering it.

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7. Over the past 50 years, the number of hurricanes that have been reported are as follows: 9 times there were 6 hurricanes, 13
poizon [28]

Answer:

Step-by-step explanation:

Let us first generate the frequency table from the information given:

Hurricane number(X)       Frequency(f)                f(X)

6                                            9                                   54

8                                            13                                  104

12                                           16                                  192

14                                            12                                168

Total                                     ∑(f) = 50                          ∑f(x) =518

In order to determine the last frequency (the remaining years), we will add the other frequencies and subtract the answer from 50, which is the total frequency (50 years). This is done as follows:

Let the last frequency be f

9 + 3 + 16 + f = 50

38 + f = 50

f = 50 - 38 = 12

Now, calculating mean:

\bar {X} = \frac{\sum f(x)}{\sum(f)} \\\\\bar {X} = \frac{518}{50} \\\\\bar {X} = 10.36

Therefore mean number of hurricanes = 10.4 (to one decimal place)

7 0
3 years ago
Last month you spent $30 on clothing. This month you spent 150% of what you spent last month. How much did you spend this month?
Ann [662]

Answer:

Last moth I spent $45 on clothing.

Step-by-step explanation:

To solve this problem, we just need to find 150% of $30.

30 x 1.50 = 45

Therefore, last moth I spent $45 on clothing.

Hope this helps! :D

3 0
2 years ago
Read 2 more answers
What is x in 4x+4=5x+45
fiasKO [112]

Answer:

Solve for  

x

by simplifying both sides of the equation, then isolating the variable.

x = − 41

7 0
3 years ago
Read 2 more answers
Write in simplest form 3m⋅4⋅n⋅n<br><br><br>​
Sedbober [7]

Hello from MrBillDoesMath!

Answer:

12 m n^2

Discussion:

3m * 4 * n * n  =                       => 3* 4 = 12

12 m * n * n                              => as n*n = n^2

12 m n^2

Thank you,

MrB

7 0
3 years ago
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Please help me idk this
murzikaleks [220]

Answer:

62°

Step-by-step explanation:

There should be 180° in a straight line.

63+55=118.

180-118=62

My deepest apologies if it is incorrect.

8 0
3 years ago
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