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ipn [44]
3 years ago
6

Nitrogen is used to protect steel from water because nitrogen has ________.

Chemistry
2 answers:
REY [17]3 years ago
8 0
Inert properties

<span>Nitrogen is used to protect steel from water because it has inert properties that make it a good blanketing gas.</span>
givi [52]3 years ago
3 0

Answer is: low reactivity.

Nitrogen (N) is in group 15 of Periodic table of elements and his atomic number is seven, which means that nitrogen has seven electrons and electron configuration: ₇N 1s²2s²2p³.

Nitrogen is inert (low reactivity) nonmetal and has five valence electrons. Nitrogen has oxidation numbers from -3 to +5.

Nitrogen molecule (N₂) has strong nonpolar triple covalent bond, that is why it is very stable and have low reactivity.

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what volume of a 0.149 m potassium hydroxide solution is required to neutralize 17.0 ml of a 0.112 m hydrobromic acid solution?
IgorLugansk [536]

Answer: 12.78ml

Explanation:

Given that:

Volume of KOH Vb = ?

Concentration of KOH Cb = 0.149 m

Volume of HBr Va = 17.0 ml

Concentration of HBr Ca = 0.112 m

The equation is as follows

HBr(aq) + KOH(aq) --> KBr(aq) + H2O(l)

and the mole ratio of HBr to KOH is 1:1 (Na, Number of moles of HBr is 1; while Nb, number of moles of KOH is 1)

Then, to get the volume of a 0.149 m potassium hydroxide solution Vb, apply the formula (Ca x Va)/(Cb x Vb) = Na/Nb

(0.112 x 17.0)/(0.149 x Vb) = 1/1

(1.904)/(0.149Vb) = 1/1

cross multiply

1.904 x 1 = 0.149Vb x 1

1.904 = 0.149Vb

divide both sides by 0.149

1.904/0.149 = 0.149Vb/0.149

12.78ml = Vb

Thus, 12.78 ml of potassium hydroxide solution is required.

5 0
3 years ago
How many molecules in 4NH3
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Answer:

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ch4aika [34]

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In today's experiment, Solutions A and B are prepared as follows.
hram777 [196]

Answer:

D. 0.160

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Right answer is:

<h3>D. 0.160</h3>
3 0
3 years ago
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