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IRISSAK [1]
3 years ago
10

The process of a liquid converting to a solid is called

Chemistry
1 answer:
VashaNatasha [74]3 years ago
3 0
It is called freezing.
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(5points) Na2[Fe(OH2)2(OH)I3]absorbs photons with energy of 191kJ/mol. Calculate the wavelength (in nm) for a photon absorbed by
AfilCa [17]

Answer:

626.7nm

Explanation:

The energy of a photon is defined as:

E = hc / λ

<em>Where E is the energy of the photon, h is Planck constant (6.626x10⁻³⁴Js), c is speed of light (3x10⁸m/s) and </em>λ is the wavelength of light

The energy of 1 photon is:

(191000 J / mol) ₓ (1 mole / 6.022x10²³) = 3.1717x10⁻¹⁹ J

Replacing:

3.1717x10⁻¹⁹ J = <em>6.626x10⁻³⁴Jsₓ3x10⁸m/s /  </em>λ

λ = 6.267x10⁻⁷m

as 1nm = 1x10⁻⁹m:

6.267x10⁻⁷m ₓ (1nm / 1x10⁻⁹m) =

<h3>626.7nm</h3>
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3 years ago
What can you tell about the location of the Sun from this illustration of the Milky Way? A) It is outside of the Milky Way. B) I
MakcuM [25]
It is within the central bulge
7 0
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Why is the Lithium ion (Li+1) stable even though it does not have an octet?
Elan Coil [88]
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6 0
3 years ago
Show the difference in the reactivity of Na,Ca,Mg,Al,Fe,Cu with H2O
Vesnalui [34]

Answer:

Explanation:

Na react with H2O to form NAOH

2 Na+2H2O....................2NAOH + H2

Ca react with water and form calcium hydroxide

Ca + 2H2O........................Ca(OH)2

Mg react with water and form Magnesium hydroxide

Mg +2H2O .........................Mg(OH)2 however this coating of mg(oh)2 prevent it from further reaction

 Fe react with water and form ferric hydride

3Fe +H2O.......................2 FeH +FeO

copper do not react with water

7 0
3 years ago
Most of the electricity that is used in everyday life comes from________ current.
melamori03 [73]

Answer:

electric is your answer :)

Explanation:

Edge STEM instruction/assignment perhaps???

8 0
3 years ago
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