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elena55 [62]
2 years ago
11

What is "X" in the following reaction?

Chemistry
1 answer:
charle [14.2K]2 years ago
4 0
X is the answer that we do not know yet!!:)
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For the skeletal chemical equation
deff fn [24]

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4 0
2 years ago
An aqueous potassium iodate (KIO3) solution is made by dissolving 553 grams of KIO3 in sufficient water so that the final volume
liberstina [14]

Answer:

M KIO3 = 1.254 mol/L

Explanation:

  • molarity (M) [=] mol/L

∴ w KIO3 = 553 g

∴ mm KIO3 = 214.001 g/mol

∴ volumen sln = 2.10 L

⇒ mol KIO3 = (553 g)×(mol/210.001 g) = 2.633 mol

⇒ M KIO3 = (2.633 mol KIO3 / (2.10 L sln)

⇒ M KIO3 = 1.254 mol/L

3 0
3 years ago
Read 2 more answers
How many valence electrons are there in an argon atom?
dalvyx [7]

Answer:

The element argon is in column 8A and is a noble gas. Nobles gases are completely stable because their outershell is filled with all eight electrons.  Argon has eight valence electrons.

4 0
2 years ago
When aqueous solutions of Na2SO4 and Pb(NO3)2 are mixed, PbSO4 precipitates. Calculate the mass of PbSO4 formed when 1.25 L of 0
neonofarm [45]

Answer:

The mass of PbSO4 formed 15.163 gram

Explanation:

mole of Pb(NO₃)₂ = 1.25 x 0.05 = 0.0625

mole of Na₂SO₄ = 2 x 0.025 = 0.05

                                      Pb(NO₃)₂ + Na₂SO₄ → PbSO₄ + 2 NaNO₃

( Mole/Stoichiometry )    \frac{0.0625}{1}           \frac{0.05}{1}

                                     = 0.0625     = 0.05

From  (Mole/ Stoichiometry ) we can conclude that Na₂SO₄ is limiting reagent.

Mass of PbSO₄ precipitate = 0.05 x Molecular mass of PbSO₄

                                            = 0.05 x 303.26 g

                                            = 15.163 g

7 0
2 years ago
Which two systems first respond to burning your finger?
Bess [88]

Answer:

B. is my guess

I'm sorry if I'm wrong

God bless :)

7 0
3 years ago
Read 2 more answers
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