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marshall27 [118]
3 years ago
14

Steel is the most commonly used metallic material. However, its annual loss due to corrosion is huge. Preventing metal corrosion

is a big issue in scientific research. The wrong description about metal corrosion below is
A. Steel corrodes more easily in
humid air than in dry air
B. Steel corrosion in reality is the
chemical change that takes place
when steel reacts with the
oxygen and water vapour in air.
C. Aluminium is more active than
the iron in steel. Therefore its
ability to resist corrosion is
weaker than steel.
D. Painting on the surface of steel
can prevent corrosion of the
steel.​
Chemistry
2 answers:
Fiesta28 [93]3 years ago
5 0

Answer:

d

Explanation:

elvis's do fhgffgcgxcycy

Stels [109]3 years ago
3 0
B
Jdjfjfbfbfhhrjrbfbvfudhvr
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Sulfuryl chloride decomposes at high temperatures to produce sulfur dioxide and chlorine gases:
den301095 [7]

Answer:

[SO2Cl2] = = 0.015 M [SO2] = = 0.0027 M [Cl2] = = 0.0027 M Q = =   = 4.8 × 10−4

No. Q < Kc, so reaction will shift to the right.

Explanation:

7 0
3 years ago
Consider a situation in which 211 g
Stella [2.4K]

Answer:

3.00 mol

Explanation:

Given data:

Mass of P₄ = 211 g

Mass of oxygen = 240 g

Moles of P₂O₅ = ?

Solution:

Chemical equation:

P₄ + 5O₂       →     2P₂O₅

Number of moles of P₄:

Number of moles = mass/ molar mass

Number of moles = 211 g / 123.88 g/mol

Number of moles = 1.7 mol

Number of moles of O₂ :

Number of moles = mass/ molar mass

Number of moles = 240 g / 32g/mol

Number of moles = 7.5 mol

Now we will compare the moles of product with reactant.

                       O₂         :         P₂O₅

                        5          :           2

                        7.5       :        2/5×7.5 = 3.00

                       P₄          :         P₂O₅

                        1           :           2

                       1.7         :       2×1.7 = 3.4 mol

Oxygen is limiting reactant so the number of moles of P₂O₅ are 3.00 mol.

Mass of P₂O₅:

Mass = number of moles × molar mass

Mass = 3 mol ×283.9 g/mol

Mass = 852 g

3 0
3 years ago
Charlie is frying an egg in a pan located over a gas burner. He develops a model to determine the energy produced by the flame i
frosja888 [35]

Answer: B.)

Explanation:  Heat flows from pan to sounroundings

8 0
3 years ago
A reactant and a product of nuclear fission.<br><br> A. Neutron<br> B. Gamma
Readme [11.4K]

Answer:

Neutron

Explanation:

3 0
2 years ago
When harmful bacteria invade a wound, the skin around the wound turns red. This is known as:
nasty-shy [4]

Answer:

Inflammation

Explanation:

Inflammation is the response to a cut. The blood vessels expand when you get cut to allow white blood cells to flock to the wound site. These attack any bacteria that got past the clot. If you mean <u>excess</u> bacteria, then that would be an infection.

4 0
3 years ago
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