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Andrei [34K]
3 years ago
9

The wavelength of a photon that has an energy of 5.25 × 10-19 j is __________ m.

Chemistry
1 answer:
RoseWind [281]3 years ago
4 0
The wavelength of a photon that has an energy of 5.25 × 10⁻⁻¹⁹ J is 3.79 × 10⁵ cm

I attached the working and the answer to both questions below.

Please note that E= Energy  C = speed of light, h = Plank's Constant, λ= wavelength




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An ionic compound has a highly negative ΔH soln in water. Would you expect it to be very soluble or nearly insoluble in water? E
valina [46]

The ionic compound will be soluble in water.

Ions are present in ionic compounds, which are held together by the attraction interactions between the ions with opposing charges. One of the most well-known ionic compounds is table salt or sodium chloride. Molecular compounds are made up of separate molecules that are connected by sharing electrons (covalent bonding).

High melting points are found in ionic substances. ionic compounds are brittle and rigid. When an ionic chemical is dissolved in water, it separates into ions. Ionic compound solutions and melting forms of these substances carry electricity, while solid materials do not.

A substance's heat of solution value is one of the criteria that determine whether or not it will dissolve. The Ionic compound will dissolve in water because a negative heat of the solution indicates that the reaction will be spontaneous.

To know more about Ionic compound refer to:  brainly.com/question/9167977

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8 0
2 years ago
Answer fast and correct!
USPshnik [31]

Answer:

A. Provide both heat and power to homes

3 0
2 years ago
Read 2 more answers
.
Sliva [168]
  <span>From the balanced equation: 
4mol Fe will produce 2mol Fe2O3 
Molar mass Fe = 55.847g/mol 
16.7gFe = 16.7/55.847 = 0.3mol Fe 
This will produce 0.15mol Fe2O3 
Molar mass Fe2O3 = 159.6887 g/mol 
0.15mol = 159.6887*0.15 = 23.95g Fe2O3 produced
Hope this helps</span>
6 0
3 years ago
Blood makes up about what percent of our body mass?
Shtirlitz [24]

Answer:

7%

Explanation:

The amount of blood in the human body is generally equivalent to 7 percent of body weight. #answerwithquality #BAL

7 0
3 years ago
Read 2 more answers
Consider the balanced equation below.
wolverine [178]

Answer:

a) H2S:SO2 = 2:2 and O2:H2O = 3:2

Explanation:

  • 2H2S + 3O2 → 2SO2 + 2H2O

⇒ H2S:SO2 = 2 mol H2S / 2 mol SO2 ≡ 2 : 2

⇒ O2:H2O = 3 mol O2 / 2 mol H2O ≡ 3 : 2

8 0
3 years ago
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