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
natima [27]
2 years ago
11

What is the best definition of the enthalpy change Hr

Chemistry
1 answer:
Gre4nikov [31]2 years ago
5 0

Answer:

<em>The flow of thermal energy in a system, at constant atmospheric pressure AND at thermodynamic standard temperature and pressure.</em>

You might be interested in
Pls hurrry<br>what are greenhouse effect 1 paragraph and come friends
Kay [80]
The greenhouse effect is a natural process that warms the Earth’s surface. When the Sun’s energy reaches the Earth’s atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.
Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons (CFCs).
The absorbed energy warms the atmosphere and the surface of the Earth. This process maintains the Earth’s temperature at around 33 degrees Celsius warmer than it would otherwise be, allowing life on Earth to exist.


hope it helps you
follow for more………………………>_<
8 0
2 years ago
10. What is used to "cure" a virus *
Lerok [7]
Vaccine

Because scientists normally put the cure in a form to get injected into you and since a vaccine is basically a shot vaccine would most likely be correct
8 0
3 years ago
HELP QUICK ASSESMENT
ehidna [41]

Answer:

MAGNESIUM

Explanation:

7 0
2 years ago
Read 2 more answers
Lactose, C12H22O11, is a naturally occurring sugar found in mammalian milk. A 0.335 M solution of lactose in water has a density
Dmitry_Shevchenko [17]

The molality of the solution is 0.00037 m.

<h3>What is concentration?</h3>

The term concentration refers to the amount of solute in a solution.

We have the following information;

Molarity = 0.335 M

Density =  1.0432 g/mL

Temperature = 20 o C

The molality of the solution is obtained from;

m = 0.335 M ×  1.0432 g/mL/ 1000(1.0432 g/mL) - 0.335 M (342 g/mol)

m = 0.344/1043.2 - 114.57

m =  0.344/928.63

m = 0.00037 m

Learn more about molality of solution: brainly.com/question/4580605

5 0
2 years ago
Sugar cannot be separated from sugar solution by filtering explain why?​
alexdok [17]

Answer:

The sugar particles are so small that they have dissolved in the water, and can easily pass through the filter.

5 0
2 years ago
Read 2 more answers
Other questions:
  • An ion with an atomic number of 34 and 36 electrons has a __________ charge
    14·1 answer
  • How many electrons are transferred during the formation of one molecule of al2o3?
    8·1 answer
  • Uranium-234 decays to lead-214 through a series of alpha decays. Which of the following is the total number of alpha particles e
    7·1 answer
  • Rutherford's research was primarily involved with: electron distribution defining the components of nuclei using electromagnetic
    13·1 answer
  • Thank you for all your help and support.<br><br><br><br> Love you all.
    6·2 answers
  • What is the dominant element attached to the carbon backbone
    12·1 answer
  • True or False? Higher-number land capability classes are more suited<br> for growing crops.
    7·1 answer
  • Why does ice have a different density than liquid water?
    11·1 answer
  • PLEASE HELP QUICK!
    10·1 answer
  • fig. 15 shows a simplified diagram of the electrolysis of a molten electrolyte containing lithium chloride. b. Describe how the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!