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
In-s [12.5K]
2 years ago
6

Question.2

Chemistry
1 answer:
fiasKO [112]2 years ago
3 0

Answer:i dont know the answer

You might be interested in
A coffee cup calorimeter will not be used to directly measure the enthalpy of magnesium combustion because
yanalaym [24]

Answer:

A coffee cup calorimeter is great for measuring heat flow in a solution, but it can't be used for reactions that involve gases since they would escape from the cup. The coffee cup calorimeter can't be used for high-temperature reactions, either, because they would melt the cup.

8 0
3 years ago
Read 2 more answers
What two dose the transfer of light energy require
IrinaK [193]

Answer:

Magnetic fields  and Electric fields

Explanation:

3 0
2 years ago
Photosynthesis was another biological phenomenon that occupied the attention of the chemists of the late 18th century. The demon
balu736 [363]

Answer:

In the 1770s, the English clergyman Joseph Priestley (who is credited with the discovery of O2) established the production of oxygen by vegetables recognizing that the process was, apparently, the inverse of animal respiration, which consumed such chemical element.

Explanation:

In 1772, Joseph Priestley in his Recherches sur diversces especes d'air differentiated the air of animal respiration from that emitted by vegetables in the presence of light. Of the latter, which he called "dephlogistic air", he highlighted his purifying property of the environment indicating that: plants far from affecting the air in the same way as animal respiration, produce the opposite effects, and tend to preserve the sweet and healthy atmosphere , when it becomes harmful as a result of the life and breathing of the animals or their death and their rot.

In 1780, Jean Ingeshousz in his Experiences sur les vegetaux completed and reaffirmed the observations of Joseph Priestley. At the same time, he could deny Charles Bonnet's hypothesis, by demonstrating that the air expelled from the leaves comes from inside, and that the stimulating factor of the gaseous emission was not the heat produced by the sun, but the intensity of the light .

It was, finally, Jean Senebier that between 1782 and 1784, found that the "fixed air" dissolved in the water favors the vegetation. From these observations, he hypothesized that "fixed air" (carbon dioxide) is absorbed by the plants, which take it from the atmosphere with the humidity it has and in which it is mixed. Once this gas has been captured, both from the atmosphere and from the ground, it is decomposed in the presence of light by the leaves, releasing the "vital air" (oxygen) and leaving the carbon in the plant.

Thus, at the end of the century the participation of the atmosphere in plant dynamics was already seated, although the how and why of this participation were still unknown and no theory had been formulated to explain the nutritional process as a whole.

3 0
3 years ago
This is the process where fossil fuels, forests, or other carbon-containing substances are burned, adding more carbon dioxide to
sattari [20]
The process where fossil fuels, forests, or other carbon-containing substances are burned, addin more carbon dioxide to the air is the combustion.

Some examples of combustion are:

Fossil fuel:

Carbon + O2

C + O2 -> CO2

Forests (wood)

Wood = cellulose = [C6H10O5]n

[C6H10O5]n + 6nO2 = 6n CO2 + 5n H2O

So, in general the combustion of organic matter produces CO2 and water.


4 0
2 years ago
A Balanced Equation: The total amount of atoms involved in the chemical reaction changes depending on the reaction. True or fals
Stells [14]
False is the answer



Hope this w
5 0
3 years ago
Read 2 more answers
Other questions:
  • A biochemist isolates, purifies, and combines in a test tube a variety of molecules needed for dna replication. when she adds so
    6·1 answer
  • The energy produced in the stars results from
    13·1 answer
  • PLEASE HELP, 99 POINTS When an electric current is passed through water during the process of electrolysis two gases are formed
    10·2 answers
  • According to the periodic table, carbon has an atomic mass of 12.011 u. This indicates that the most abundant isotope of carbon
    14·2 answers
  • What, if anything is wrong with the model of the solar system shown below ? Give me a big or small answer
    6·1 answer
  • How many moles are there in 1.505 X 1024 molecules of water, H2O?
    11·1 answer
  • Identify each example on the diagram as a carbon source or a carbon sink.
    8·2 answers
  • The trend seen in the periodic table for proton number is:
    8·1 answer
  • Choose all the right answers.
    9·2 answers
  • Is any one in connections academy inedd unit 5 unit test answrs now
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!