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
Nataliya [291]
3 years ago
14

1. You watch water falling from the top of a waterfall to the bottom. How would you characterize this physical phenomenon in ter

ms of spontaneity? What if you wanted to move the water from the bottom of the falls to the top—how would you characterize that reaction?
Chemistry
2 answers:
alexandr1967 [171]3 years ago
6 0
Well the reason why the water valve was because of the force of gravity. Without the force of gravity the water would have flown so if you had to try to move the water up the waterfall you would have to fight the force of gravity
aliya0001 [1]3 years ago
6 0

Answer:

Water falling from the top of the fall to the bottom is a spontaneous process. Raising water from the bottom to the top of the waterfall is a non-spontaneous process.

Explanation:

Water falling from the top of the fall to the bottom is a spontaneous process. The Earth’s gravity is pulling every object to the centre of the Earth. So it is difficult to overcome Earth’s centre of gravity and raise the water from the bottom to the top of the fall. Raising water from the bottom to the top of the waterfall is a non-spontaneous process.

You might be interested in
Which of these substances has a definite volume but not a definite
vovikov84 [41]
I think answer should be b. Please give me brainlest I hope this helps let me know if it’s correct or not okay thanks
8 0
2 years ago
Read 2 more answers
How many valence electrons are in a silicon atom?
vladimir1956 [14]
Four valence electron
4 0
3 years ago
Using your knowledge of reagents that react with alkenes, what would be a reagent that you could use to check and see if the hyd
igomit [66]

Answer:

An halogen addition reaction, particularly bromine addition, could be used to check if the hydrogenation has completed.

Explanation:

The aim is to find a way to check if the hydrogenation process of an alkene has completed. So the logic should be use a reaction that needs the participation of the double bound of the alkene, and therefore shouldn't take place in the process has finished.

A simple organic reaction is the halogen addition reaction, which occur between the halogen molecule and the double bond of the alkene. Basically, the pi electrons of the double bond attacks a relatively electrophilic halogen atom following a mechanism that leads to the addition of two halogen atoms to the double bond. As a consequence the alkene transforms into an haloalkane.

Also, a commonly used halogen is bromine, as it has a reasonable reactivity and it has red colour, which allows to monitor the progression of the reaction.

Taking all this in account, we can say that using a bromine addition reaction to the alkene it's a good option to check the completion of the hydrogenation.

Note that the bromine will react only if the double bond is present. So, if the hydrogenation has completed, the reaction won't occur. Using bromine will be the best option, as it is red coloured. That means that is we add bromine to an incomplete hydrogenation, as it will react with the alkene, the colour should disappear.

In other words, to check if the hydrogenation reaction has completed, we should add bromine and see what happens to the colour. If it doesn't change, then the hydrogenation reaction has completed.

3 0
3 years ago
Which is warmer -30C or -30 F?​
Burka [1]

-30°C is more warmer than -30°F...!

<h2>How??</h2>
  • Always Celsius is warmer than farheniet and also in coldness Celsius is colder than farheneit.
8 0
2 years ago
Read 2 more answers
PLZ HURRY
Oxana [17]

Answer:

C

Explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which statement describes a scientific law?
    15·2 answers
  • Cindy runs 2 kilometers every morning. She takes 2 minutes for the first 250 meters, 4 minutes for the next 1,000 meters, 1 minu
    14·2 answers
  • What electron transition represents a gain of energy?
    14·1 answer
  • A large person and a small person wish to parachute at equal terminal velocities. The larger person will have toa)Jump first fro
    7·1 answer
  • At what temperature will water change from a solid to a liquid (melt)?
    5·2 answers
  • An aqueous KNO3 solution is made using 75.1 g of KNO3 diluted to a total solution volume of 1.95 L .Calculate the molarity of th
    9·1 answer
  • Two separate masses of zinc were measured on a laboratory balance. The first zinc had a sample mass of 210.10g, and the second z
    12·1 answer
  • Marine worms can live in
    7·1 answer
  • C3H8+5O2 →3CO2+4H20,
    12·1 answer
  • Convert 5 pounds to kilograms <br> Help me pleaseeee
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!