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
SVEN [57.7K]
3 years ago
5

The fluid in a barometer (shown above) is mercury, Hg. Why point

Chemistry
1 answer:
PIT_PIT [208]3 years ago
5 0

Answer:

Mercury responds to temperatures differently than water. When mercury is cold, the molecules bunch together, making it seem to be less liquid, and the opposite happens during heat.

Hope this helps!

You might be interested in
At what temp will a gas be at if you allow it to expand from an original 456 mL to 65°C to 3.4 L
alexira [117]
We use the gas law named Charle's law for the calculation of the second temperature. The law states that,
                                          V₁T₂ = V₂T₁
Substituting the known values,
                                (0.456 L)(65 + 273.15) = (3.4 L)(T₁)
                                             T₁ = 45.33 K
5 0
3 years ago
Read 2 more answers
A closed flask contains gas at STP. If the temperature is raised to 400 K what will the pressure be in atm?
balandron [24]

Answer:

The answer is 1.5 atm

Explanation:

5 0
2 years ago
Which ions remain in solution after pbi2 precipitation is complete? express your answers as ions separated by a comma?
olga nikolaevna [1]

Answer;

K+ and NO3- ions

Explanation;

The main ions remaining are K+ and NO3- ions after pbi2 precipitation is complete.

However; There will always be tiny amounts of Pb2+ and I- ions, but most of them are in the solid precipitate.

7 0
3 years ago
Balance NO + 02 -- NO2 ​
Simora [160]

Answer:

NO + O2 -> NO2

it is balanced

3 0
3 years ago
Explain why the total amount of energy does not decrease in an exergonic <br> chemical reaction
Zielflug [23.3K]

An exergonic reaction is a chemical reaction where the change in the free energy is negative (there is a net release of free energy),[1] indicating a spontaneous reaction. For processes that take place under constant pressure and temperature conditions, the Gibbs free energy is used whereas the Helmholtz energy is used for processes that take place under constant volume and temperature conditions.

Symbolically, the release of free energy, G, in an exergonic reaction (at constant pressure and temperature) is denoted as

{\displaystyle \Delta G=G_{\rm {products}}-G_{\rm {reactants}}<0.\,}

Although exergonic reactions are said to occur spontaneously, this does not imply that the reaction will take place at an observable rate. For instance, the disproportionation of hydrogen peroxide is very slow in the absence of a suitable catalyst. It has been suggested that eager would be a more intuitive term in this context.[2]

More generally, the terms exergonic and endergonic relate to the free energy change in any process, not just chemical reactions. An example of an exergonic reaction is cellular respiration. This relates to the degrees of freedom as a consequence of entropy, the temperature, and the difference in heat released or absorbed.

By contrast, the terms exothermic and endothermic relate to the overall exchange of heat during a process

4 0
3 years ago
Other questions:
  • How many atoms are there in 5.699 g of cobalt, Co? Express your answer with the appropriate significant figures and unit.
    12·1 answer
  • Calculate the density, in grams per liter, of carbon dioxide (CO2) gas at STP.
    10·2 answers
  • Explain how an owl captures energy from the sun when it eats a mouse​
    10·1 answer
  • Who first published the classification of the elements that is the basis of our periodic table today
    14·1 answer
  • The following question appears on a quiz: "You fill a tank with gas at 60°C to 100 kPa and seal it. You decrease the temperature
    13·2 answers
  • During the phase change from solid ice to liquid water, which bonds/forces are being weakened?
    5·1 answer
  • Is rubbing alcohol a mixture, compound or solutions?
    12·1 answer
  • Is Boiling water a chemical or physical change?
    13·1 answer
  • Bob and Ada are camping and have sweet potatoes wrapped in foil to eat. Ada put her sweet potato in the bonfire for a while, but
    8·1 answer
  • predict the approximate bond angle in the molecule. oxygen with two lone pairs is double bonded to an oxygen with one lone pair
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!