1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marina86 [1]
3 years ago
13

Rank the following photons in terms of increasing energy: (a) blue (λ = 453 nm); (b) red (λ = 660 nm); (c) yellow (λ = 595 nm).

Chemistry
1 answer:
DochEvi [55]3 years ago
4 0

Answer

Red

Yellow

Blue

Explanation: Decrease in wavelength gives an increase in energy

You might be interested in
The distance from the sun to earth would be ______.
Dvinal [7]
C- more than one light year or B-exactly one light year
8 0
3 years ago
Read 2 more answers
Elemental iodine (I 2) is a solid at room temperature. What is the major attractive force that exists among different I 2 molecu
Ulleksa [173]

Explanation:

As I_{2} is a covalent compound because it is made up by the combination of two non-metal atoms. Atomic number of an iodine atom is 53 and it contains 7 valence electrons as it belongs to group 17 of the periodic table.

Therefore, sharing of electrons will take place when two iodine atoms chemically combine with each other leading to the formation of a covalent bonding.

Hence, weak forces like london dispersion forces will be present between a molecule of I_{2}.

The weak intermolecular forces which can arise either between nucleus and electrons or between electron-electron are known as dispersion forces. These forces are also known as London dispersion forces and these are temporary in nature.

thus, we can conclude that london dispersion force is the major attractive force that exists among different I_{2} molecules in the solid.

7 0
3 years ago
How many grams of NaCl are required to make 150.0mL of a 5.000 m solution
Yanka [14]

The  number of  grams of NaCl  required  to make 150.0 ml of a 5.000m solution  is  43.875  grams


<u><em>calculation</em></u>

Step 1:  calculate  moles of NaCl

moles=  molarity x  volume in liters

volume in liters =  150.0  ml/1000= 0.15  l

moles is=  5.000mol/l  x0.15  l  =0.75  moles


Step2 :  find  mass

mass=  moles  x molar  mass

molar mass  of NaCl= 23 +35.5 = 58.5  g/mol

mass= 0.75  moles x58.5 g/mol = 43.875 grams

6 0
4 years ago
Why it is advisided to freshly prepare the ferrous sulphate solution for experiment
chubhunter [2.5K]
Here is a site my buddie has to help you. Well co-owner..
https://www.quora.com/Why-is-fresly-prepared-FeSO4-required-for-the-ring-test
5 0
3 years ago
What is the equilibrium partial pressure of water vapor above a mixture of 62.9 g H2O and 33.2 g HOCH2CH2OH at 55 °C. The partia
bija089 [108]

Answer : The partial pressure of H_2O is 102.3 mmHg.

Explanation :

As per question,

Mass of H_2O = 62.9 g

Mass of HOCH_2CH_2OH = 33.2 g

Molar mass of H_2O = 18 g/mole

Molar mass of HOCH_2CH_2OH = 62 g/mole

First we have to calculate the moles of H_2O and HOCH_2CH_2OH.

\text{Moles of }H_2O=\frac{\text{Mass of }H_2O}{\text{Molar mass of }H_2O}=\frac{62.9g}{18g/mole}=3.49mole

\text{Moles of }HOCH_2CH_2OH=\frac{\text{Mass of }HOCH_2CH_2OH}{\text{Molar mass of }HOCH_2CH_2OH}=\frac{33.2g}{62g/mole}=0.536mole

Now we have to calculate the mole fraction of H_2O and HOCH_2CH_2OH.

\text{Mole fraction of }H_2O=\frac{\text{Moles of }H_2O}{\text{Moles of }H_2O+\text{Moles of }HOCH_2CH_2OH}=\frac{3.49}{3.49+0.536}=0.867

\text{Mole fraction of }HOCH_2CH_2OH=\frac{\text{Moles of }HOCH_2CH_2OH}{\text{Moles of }H_2O+\text{Moles of }HOCH_2CH_2OH}=\frac{0.536}{3.49+0.536}=0.134

Now we have to partial pressure of H_2O.

According to the Raoult's law,

p^o=X\times p_T

where,

p^o = partial pressure of water vapor

p_T = total pressure of gas

X = mole fraction of water vapor

p_{H_2O}=X_{H_2O}\times p_T

p_{H_2O}=0.867\times 118.0mmHg=102.3mmHg

Therefore, the partial pressure of H_2O is 102.3 mmHg.

3 0
3 years ago
Other questions:
  • Which of the following make up the nucleus of an atom? A. protons and electrons B. electrons only C. protons and neutrons D. neu
    7·2 answers
  • Which is the best description of a computer virus?
    8·2 answers
  • When 3.0 grams of H2 is reacted with excess C at constant pressure, the reaction forms CH4 and releases 53.3 kJ of heat. C(s) +
    6·1 answer
  • Amino acids are the building blocks of proteins. The simplest amino acid is glycine . Draw a Lewis structure for glycine. (Hint:
    8·1 answer
  • The maximum amount of nickel(II) cyanide that will dissolve in a 0.220 M nickel(II) nitrate solution is...?
    6·1 answer
  • A molecule is the smallest part of a ?
    12·2 answers
  • True or false: Atoms and mass are conserved in nature<br> True<br> False
    6·1 answer
  • The liquid inside the cell is called
    7·1 answer
  • A person riding a bike has a mass of 55kg. They are moving with a velocity of 2m/s. What is the Kinetic Energy of the person?
    5·1 answer
  • Mr. Jenson's class is observing the growth of one kind of pea plant.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!