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
Alla [95]
3 years ago
9

Diagram of paper chromatography from a chemistry textbook​

Chemistry
1 answer:
frozen [14]3 years ago
8 0
Save Time & Ensure Consistent Reproducible Results With Waters LC Columns & Supplies. A Range Of Chromatography Column To Meet The Needs Of Virtually Every Application
You might be interested in
PLEASE HELP ME ASAP ILL MARK U AS BRILLIANT
faust18 [17]

Answer:

19 D

20 C

21 B

22 A

23 A

24 A

Explanation:

See the periodic table

6 0
3 years ago
When the plutonium bomb was tested in New Mexico in 1945, approximately 1 gram of matter was converted into energy. Suppose anot
stiv31 [10]

Answer:

See explanation

Explanation:

Given Einstein's theory of relativity, we have that;

E= mc^2

m= mass of the substance

c= speed of light

For one gram of the substance,

E= 1 ×10^-3 × (3 × 10^8)^2

E = 9 × 10^13 J

For 8.7 g of matter;

E = 8.7 × 10^-3× (3 × 10^8)

E= 7.83 ×10^ 14 J

6 0
3 years ago
Describe what happens when ice changes<br> into liquid water.
chubhunter [2.5K]

Answer:

When ice changes into liquid water it melts. The solidified ice in the frozen, would melt via the burning sun shooting its streaks down at the ice. Which causes the ice to melt, and turn into liquid water.

Explanation:

pp poopoo

3 0
3 years ago
How do scientists calculate the energy and frequency of photons?
adell [148]
That photon's energy is equal to Planck 's constant, multiplied by the light frequency, h is always 6.63* 10^ -34 Joule seconds and the frequency is 6* 10^ 14 Hz.
4 0
3 years ago
Does anyone know how to do this?
Sloan [31]

Answer

find out the number of moles and use the molar ratio (numbers in front of formulas (in this case they are all 1) to determine how many moles of each product you are going to get theoretically

n=m/M is the equation to use to get moles here

30.8 gm/32.04 g/mol=0.9612 moles of the methanol and also of the formaldehyde so

0.9612 moles of the formaldehyde x molar mass (M) 30.73 g/mol= 29.54 gm which is the theoretical yield you already have the actual yield of 24.7 gm

then divide the actual by the theoretical to get the % yield which is 83.6%

Explanation:

4 0
3 years ago
Other questions:
  • Which pair of substances would most likely result in the production of a solid when reacting with a base?
    9·2 answers
  • The effect of atoms colliding with the walls of a container is called ______.
    11·2 answers
  • What is the easiest way to remember polyatomic ions?
    5·1 answer
  • A chemist prepares a solution of sodium chloride(NaCl) by measuring out 25.4g of sodium chloride into a 100ml volumetric flask a
    5·2 answers
  • If atoms of a halogen nonmetal (Group 17) gains one electron, the atoms the have __.
    6·2 answers
  • What element has the same number of valence electrons as sulfur?
    10·1 answer
  • Pls help <br> 20020200202
    6·1 answer
  • Why is the liquid oxygen machine producing less liquid oxygen than normal?
    14·2 answers
  • Which equation is derived from the combined gas law?
    5·2 answers
  • How abundant is Polonium in the earth's crust?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!