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Grace [21]
3 years ago
7

In which direction are groups on the periodic table? →, ↓, ​↘​ In which direction are periods on the periodic table?

Chemistry
2 answers:
Vlada [557]3 years ago
8 0
A is the correct answer for periods, B is correct for groups
Sophie [7]3 years ago
5 0

Answer:

For periods a. for groups b.

Explanation:

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A solution of iron(III) chlorate was poured into a lithium phosphate solution. Would you expect a precipitate to form if 354.0 m
Artist 52 [7]

Answer:

K. Yes, because Qsp > Ksp for iron(III) phosphate

Explanation:

Lithium chlorate is very soluble in water, that means has a big ksp.

Iron (III) phosphate has a ksp of 1.3x10⁻²²

Ksp formula of iron (III) phospate is:

FePO₄(s) ⇄ Fe³⁺(aq) + PO³⁻(aq)

Ksp = [Fe³⁺] [PO₄³⁻] = 1.3x10⁻²²

Molar concentration of Fe³⁺ and PO₄³⁻ is:

[Fe³⁺] = 0.340L ₓ (2.52x10⁻⁹mol / L) ÷ (0.354L + 0.520L) = <em>9.8x10⁻¹⁰M</em>

[PO₄³⁻] = 0.520L ₓ (4.65x10⁻¹¹mol / L) ÷ (0.354L + 0.520L) = 2.78<em>x10⁻¹¹M</em>

Replacing in Ksp formula:

Qsp = [9.8x10⁻¹⁰] [2.78x10⁻¹¹M] = 2.72x10⁻²⁰

As Qsp > Kps, the equlibrium will shift to the right decreasing the ions concentrations producing FePO₄(s), <em>a precipitate</em>

<em>The ions decreases its concentration until Q = Kps</em>

<em />

Thus, right answer is:

<em>K. Yes, because Qsp > Ksp for iron(III) phosphate </em>

6 0
3 years ago
What do oxygen and iron make?
Grace [21]

Answer:Iron combines with oxygen to produce rust, which is the compound named iron oxide

Explanation:

7 0
3 years ago
Why do plants aquire more leaves during summer ?​
Delvig [45]

Answer:

in summer plants acquire more leaves to produce more food.

Explanation:

8 0
3 years ago
Indicate the SI base units or derived units that are appropriate for the following measurements:
Alisiya [41]

Answer:

The units of SI: meter, kilogram, second, Kelvin

Explanation:

(a) The length of a marathon race: meter (m)

(b) The mass of an automobile : kilogram (kg)

(c) The volume of a swimming pool : cubic meter (m^3)

(d) The speed of an airplane : (m/s)

(e) The density of gold : (kg/m^3)

(f) The area of a football field : square meter (m^2)

(g) The maximum temperature at the South Pole on April 1,1913: Kelvin (K)

7 0
3 years ago
Which group contains elements that have the following characteristics:
alekssr [168]

Answer:

1)

Explanation:

the answer to you question Is 1)

6 0
3 years ago
Read 2 more answers
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