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
professor190 [17]
2 years ago
8

Explain why some substances travel further than others.

Chemistry
1 answer:
yuradex [85]2 years ago
3 0

<em><u>Larger molecules take longer to move up the chromatography paper or TLC plate, whereas smaller molecules are more mobile. Likewise, the polarity of the molecules can affect how far the spots travel, depending on the type of solvent used.</u></em>

\large\sf\red{♡♡}

You might be interested in
Give an example of a base in chemistry
slega [8]
An example of a base in chemistry would be like soap or lye
8 0
3 years ago
Read 2 more answers
Finalmente responde:
dexar [7]

El agua se purifica a partir de un proceso de filtrado. Las características que evidencian el filtrado incluyen pH normal, color cristalino, ausencia de metales pesados y/o microorganismos, etc.

  • Los filtros para purificar agua son dispositivos que permiten el limpiado del agua con el objetivo de convertirla apta para consumo humano.

  • En general, los filtros para lograr la purificación del agua consisten de carbón activado, el cual se prensa con alta presión.

  • Este dispositivo de carbón activado permite secuestrar las partículas sólidas que pasan a través del filtro, con lo cual el agua sale a través del filtro completamente purificada.

Las características que permiten determinar si el agua ha sido correctamente filtrada incluyen:

  1. El agua sale cristalina, es decir, sin ningún tipo de color que evidencie la presencia de contaminación.
  2. El pH del agua potable debe oscilar entre valores normales (6,5 a 8,5)
  3. No debe contener metales tales como plomo, arsénico o cadmio (altamente tóxicos)
  4. No debe contener microorganismos

Aprende más sobre este tema en:

brainly.com/question/24806243?referrer=searchResults

8 0
2 years ago
A patient needs to take 625 mg of ibuprofen twice daily. The pills in the bottle are each 250. mg. How many pills does the patie
WINSTONCH [101]
2 and a half
250 x 2 =500
250/2=125
and 125 is a half of 250
so your answer is
2 and a half
5 0
3 years ago
Read 2 more answers
When compounds are formed, will its heat give off?​
mariarad [96]

Answer: It depends on the type of chemical reaction that formed the compound.

Explanation:

Exothermic reactions give off the heat to the reaction environment, so the compound feels hotter.

Endothermic reactions absorb the heat from the reaction environment and the compound feels cooler.

7 0
3 years ago
Urea (CH4N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with carbon dioxide as follows:
Nezavi [6.7K]

The theoretical yield of urea : = 227.4 kg

<h3>Further explanation</h3>

Given

Reaction

2NH3(aq)+CO2(aq)→CH4N2O(aq)+H2O(l)

128.9 kg of ammonia

211.4 kg of carbon dioxide

166.3 kg of urea.

Required

The theoretical yield of urea

Solution

mol Ammonia (MW=17 g/mol)

=128.9 : 17

= 7.58 kmol

mol CO₂(MW=44 g/mol) :

= 211.4 : 44

= 4.805 kmol

Mol : coefficient of reactant , NH₃ : CO₂ :

= 7.58/2 : 4.805/1

=3.79 : 4.805

Ammonia as limiting reactant(smaller ratio)

Mol urea based on mol Ammonia :

=1/2 x 7.58

=3.79 kmol

Mass urea :

=3.79 kmol x 60 g/mol

= 227.4 kg

3 0
2 years ago
Other questions:
  • A fatty acid containing at least one double bond is called _____
    7·1 answer
  • Explain oxidation and reduction occur simultaneously​
    9·2 answers
  • Which element is placed in the same period as ruthenium but has a higher atomic number than it? bismuth osmium silver zirconium
    15·2 answers
  • A beach towel is laying on the sand in the sun. Why does the sand feel hotter
    5·1 answer
  • Consider the following diagram of a chemical reaction.
    14·2 answers
  • What is biomass energy? How does it work? (2-3 sentences is good enough c:)
    9·1 answer
  • If you cant see the image please let me know. last time i put an image someone said its blurry.
    11·1 answer
  • What is sublimation ​
    10·2 answers
  • Electrical Safety Test Take Exam
    11·1 answer
  • What is a paper clip, a colloid? solution? or a suspension?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!