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SashulF [63]
3 years ago
13

Please Help 3. Were there any metallic compounds that did not react with either the acid or the base? Write the type of metal, b

ased on your examination of the periodic table.
Chemistry
1 answer:
Norma-Jean [14]3 years ago
5 0

Answer:

1)KNO3 ( pottasium trioxonitrate (V)

2)Ca(NO3)2 (calcium trioxonitrate (V

Explanation:

1)KNO3 ( pottasium trioxonitrate (V)

2)Ca(NO3)2 (calcium trioxonitrate (V)

Thses two compounds are metallic compounds and does not react with either the acid or the base.

Write the type of metal, based on your examination of the periodic table?

1)KNO3 ( pottasium trioxonitrate (V) have a potassium element which belongs to group 2 of the Periodic table which is an alkaline metal and can react with water or steàm

2)Ca(NO3)2 (calcium trioxonitrate (V) has calcium metal element which is an alkaline earth metal in the Periodic table and they react with Hallogens

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vladimir2022 [97]

Answer:

pH = 9.29

Explanation:

  • C5H5N + H2O ↔ C5H5NH+  +  OH-

∴ pKb = 8.75 = - Log Kb

⇒ Kb = 1.7783 E-9 = [OH-][C5H5NH+]/[C5H5N]

mass balance:

⇒ <em>C</em> C5H5N = 0.215 M = [ C5H5N ] + [C5H5NH+]

charge balance:

⇒ [OH-] = [C5H5NH+]

⇒ Kb = 1.7783 E-9 = [OH-]² / ( 0.215 - [OH-] )

⇒ [ OH-]² + 1.7783 E-9[OH-] - 3.8233 E-10 = 0

⇒ [OH-] = 1.9552 E-5 M

⇒ pOH = 4.708

∴ 14 = pH + pOH

⇒ pH = 9.29

5 0
3 years ago
how many liters of O2 are needed to produce 5.62 g of SO2 in the following reaction? 4FeS2+11O2 -&gt;2Fe2O3+8SO2
Liula [17]

8moles of SO_2 need 11mol O_2

  • 1mol need=11/8=1.4molO_2

Moles of sO_2

\\ \rm\hookrightarrow \dfrac{5.62}{64}=0.1

So

Moles of O_2

  • 1.4(0.1)=0.14mol

We know

  • 1mol at STP=22.4L
  • 1.4mol=0.14(22.4)=3.13L O_2
5 0
3 years ago
I’m a chemical formula such as H2O what does a small number next to an element symbol tell you
Ivan

The little number you see to the right of the symbol for an element is called a subscript.


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In a bottle of coke which would you expect to be higher, the concentration of H+ or the concentration of OH+? Why?
motikmotik

Answer: I don’t really know

Explanation:

I don’t know sorry

3 0
3 years ago
Please only answer if you're going to help.
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Answer:

1.solvent

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