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
natta225 [31]
3 years ago
14

Pre-lab questions 1. a concentration gradient affects the direction that solutes diffuse. describe how molecules move with respe

ct to the concentration.
Chemistry
1 answer:
VLD [36.1K]3 years ago
7 0

Just like how heat moves from a region of higher temperature to a region of lower temperature, molecules also tend to move from a region of higher concentration to a region of lower concentration. This is called natural diffusion and is naturally happening to reach stability.

You might be interested in
Can someone please help me please?
OleMash [197]
I would say the second option

Hope this helps *smiles*
8 0
2 years ago
The boiling points of different substances are given in the table below.
Oksi-84 [34.3K]

Answer:

Water

Explanation :-

Higher the intermolecular forces between the liquid particles, higher its boiling point.

8 0
3 years ago
c) A substance has a high melting point and conducts electricity. What type of structure does it have
trapecia [35]

Answer:

Metallic structure

Explanation:

They have a high melting point due to the strong forces of attraction between the positive ions (cations) and the delocalised electrons. Moreover, they conduct electricity due to the sea of delocalised electrons.

<em>[Extra: It could be an ionic compound since they also have a high melting point, however they only conduct electricity in liquid or aqeouus state.]</em>

6 0
2 years ago
Describe how experimental evidence led each of the following scientists: Dalton, Rutherford, Thompson, Chadwick and Bohr, to dev
nasty-shy [4]
Dalton Found out there was a small, hard indestructible sphere that is the smalles part of an element.He created his own Atomic Theory:
-All Matter is made up of small particles called atoms.
-Atoms cannot be created, destroyed, or divided into smaller particles.
-All atoms of the same element are identical in mass and size. The atoms of one element are different in mass and size from the atoms of other elements.
<span>-Compounds are created when atoms of different elements link together in definite proportions.
</span><span>Rutherford had found the positively charged nucleus in the middle of every atom using his Gold Foil Experiment. While doing this experiment, he expected these particles to just pass right through the foil but they bounced right back. He also proposed there were negatively charged electrons revolving around the nucleus.
</span><span>Thompson found negative electrons and inferred atoms also contain negative particles. He inferred there was a lump of positively charged material, with negative electrons throughout. He used the Raisins Bun Model to explain. 
</span>Chadwick <span>proved that it consisted of a neutral particle with about the same mass as a proton "Neutron"  is the name given to the particle</span>
Bohr 
believed Rutherford's prediction was correct, but it wasn't complete. Bohr proposed electrons could only move between energy levels, rather then being able to move everywhere.
6 0
3 years ago
What would happen if the earths core cooled
maria [59]

Answer:

Shutterstock

Explanation:

when the molten outer core cools and become solid ,a very long time in future,the earth's magnetic field will disappear

6 0
2 years ago
Other questions:
  • Which of these is most similar to the Aztec political system?
    10·1 answer
  • In class, sam learned that some theorists link happiness to productivity. from this, he developed the thought that happy employe
    10·1 answer
  • which of the following is a product formed whrb NO2 and H2O react together A O2 B HNO3 C H2 D P(OH)2
    8·2 answers
  • What is responsible for deepwater currents?
    14·2 answers
  • In a synthesis experiment you obtain a sample of product on which you do a melting point determination and find a melting point
    13·1 answer
  • CO2(g) + H2O(I) - -&gt; C6H12O6(s) + O2(g)
    15·1 answer
  • What happens as liquid water boils?
    14·1 answer
  • Some animals that live in extremely cold environments protect themselves from freezing by increasing the molality of certain che
    8·1 answer
  • In an atom the number of protons must be equal of
    14·2 answers
  • write the names of the following compounds. 1) iron + sulphur . 2) manganese + oxygen. aluminium + sulphur​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!