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marshall27 [118]
2 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]2 years ago
5 0

Answer:

d

Explanation:

elvis's do fhgffgcgxcycy

Stels [109]2 years ago
3 0
B
Jdjfjfbfbfhhrjrbfbvfudhvr
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BRAINIEST TO THE ONE WHO ANSWER THIS
alexandr1967 [171]

Answer:

The statement that best describes the trend in first ionization enery of elements on the periodic table is:

It generally decreases down a group because valence electrons are farther from the nucleus.

The first ionization energy measures how difficult is to release an electron from the outermost shell. The higher the ionization energy the more difficult it is to release an electron, the lower the ionication energy the easier to release an electron.

As the atomic number of the atom increases (which is what happens  when you go down a group) the furthest the outermost shell of electrons will be (the size of the atoms increases) and so those electrons require less energy to be released, which means that the ionization energy decreases.

Hope it helps!

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m(NaOH) = 1,5 mol · 40 g/mol.
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