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kvv77 [185]
3 years ago
15

1. MnO₂ is an example of what type of bond?

Chemistry
2 answers:
Zepler [3.9K]3 years ago
7 0

Answer:

1) b

2)c

Explanation:

Elanso [62]3 years ago
4 0

Answer:

1. covalent

2. polyatomic ion

Explanation:

:)

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How many moles of hydrogen are needed to completely react with 2 moles of nitrogen
Natali5045456 [20]
Assuming ammonia is the product of this reaction:

N2+3H2--->2NH3

2 mole N2 * (3 mol H2)/(1 mol N2)= 6 mol H2

You would need 6 mol of hydrogen gas to completely react with 2 mol of nitrogen. 
5 0
3 years ago
Calculate the ph of a solution formed by mixing 200.0 ml of 0.30 m hclo with 300.0 ml of 0.20 m kclo. the ka for hclo is 2.9 × 1
velikii [3]
C(HClO) = 0,3 M.
<span>V(HClO) = 200 mL = 0,2 L.
n(HClO) = </span>c(HClO) · V(HClO).
n(HClO) = 0,06 mol.<span>
c(KClO</span>) = 0,2 M.
<span>V(KClO) = 0,3 L.
n(KClO) = 0,06 mol.
V(buffer solution) = 0,2 L + 0,3 L = 0,5 L.
ck</span>(HClO) = 0,06 mol ÷ 0,5 L = 0,12 M.
cs(KClO) = 0,06 mol ÷ 0,5 L = 0,12 M.<span>
Ka(HClO</span>) = 2,9·10⁻⁸.<span>
This is buffer solution, so use Henderson–Hasselbalch equation: 
pH = pKa + log(cs</span> ÷ ck).<span>
pH = -log(</span>2,9·10⁻⁸) + log(0,12 M ÷ 0,12 M).<span>
pH = 7,54 + 0.
pH = 7,54</span>
6 0
3 years ago
CH3OH can be synthesized by the reaction:
Leviafan [203]

Answer:

5

Explanation:

8 0
3 years ago
Which structure regulates water loss and gas exchange
Xelga [282]
If you're referring to plants, your answer is the Epidermis.

Hope this helps! :)


8 0
3 years ago
Which atomic model propose that electrons move in specific orbits around the nucleus of an atom
tamaranim1 [39]

Answer: Bohr's

Explanation:

5 0
3 years ago
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