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
Vladimir79 [104]
3 years ago
10

What is the amount of heat released when 25g of water cools 12.5 degrees C ?

Chemistry
1 answer:
Over [174]3 years ago
4 0
Water can't cool at a single temperature. It must start at a higher temperature, and drop to a lower temperature in order to cool. Unless we know the other temperature, there is no way to calculate the amount of thermal energy released.
You might be interested in
How do the properties of elements in the same column of the periodic table compare
Alik [6]
The columns of the periodic table, also referred to as "groups" contain elements with similar reactive properties, due to these elements having a similar configuration of electrons in their outer shell.
4 0
3 years ago
How many electrons would an uncharged atom of nitrogen have
dybincka [34]
The atomic number represents the number of protons in an atom's nucleus. In an uncharged atom, the number of protons is always equal to the number of electrons. For example, carbon atoms include six protons and six electrons, so carbon's atomic number is 6.
3 0
2 years ago
Helpppp!!!
OlgaM077 [116]

Answer:

your answer would be E

Explanation:

I took that class

3 0
2 years ago
Read 2 more answers
Review the PCR (Calvin-Benson-Basham) cycle and the photochemical (light) reactions. If photosynthesizing green algae are provid
stepladder [879]

Answer:

Explanation:

THE PHOTOCHEMICAL(LIGHT) REACTIONS :This is a phase of photosynthesis where sunlight is used as a source of energy to manufacture two chemical compounds which are "Reduced nicotinamide adenine dinucleotide phosphate"-NADPH and "Adenosine triphosphate"-ATP.This phase of photosynthesis involves 4 steps or reactions which are :

STEP 1 : Activation or Energization of chlorophyll - In this reaction,chlorophyll molecules in green algae or plants absorb sunlight and become activated,that is the electrons of the chlorophyll molecule acquire solar energy and become excited.

STEP 2 : PHOTOLYSIS OF WATER - Here the energy absorbed by the chlorophyll molecules are used to split water molecules into H+ ions and OH-- ions.

STEP 3:Formation of NADPH -The hydrogen ions (H+) produced reacts with an NADP ( an electron carrier in the chlorophyll) to form NADPH.

STEP 4: FORMATION OF ATP - The high energy generated from the electron transfer process or chain is used to add a phosphate group to ADP (Adenosine dphosphate) to form ATP.

DARK PHASE :In this phase of photosynthesis,the NADPH generated in the light phase is used as a reducing equivalent to reduce CO2 to form Glucose (food) using the ATP generated as a source of energy.

7 0
3 years ago
Find the moler mass of P2S3
Anon25 [30]

Answer:

158.2 g/mol

Explanation:

8 0
2 years ago
Other questions:
  • What number would you write before water in the formula for calcium carbonate nonahydrate?
    7·1 answer
  • "how is the stomach lining protected from the strongly acidic ph of its contents?"
    7·1 answer
  • And done! :)))))))))
    10·2 answers
  • Please Help!
    11·2 answers
  • Determine the mass in grams of 0.600 mol of oxygen atoms ( 32 grams x1mole/(mass of element)
    13·1 answer
  • Explain why wrapping a fire blanket around somebody on fire would not be a good idea.
    6·1 answer
  • ASAP for brainlist first correct question
    13·1 answer
  • hi, I need help with this question. Is it possible to determine the position and energy of an electron at the same time? why or
    10·1 answer
  • Heart, 5 stars, and Brainiest to first right answer!
    9·1 answer
  • If an object does Not explode, catch fire, or dissolve, how would you describe this object? (Three answers)​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!