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
Nastasia [14]
3 years ago
11

Any will help! Please!!

Biology
1 answer:
vodomira [7]3 years ago
5 0
 heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee sorry person
You might be interested in
Explain how Co2 is able to control fires?<br><img src="https://tex.z-dn.net/?f=co2" id="TexFormula1" title="co2" alt="co2" align
Alborosie

Carbon dioxide is heavier than oxygen gas. It therefore displaces the oxygen gas around a flame. Without oxygen, the combustion reaction will stop and the flame will be put out.

Further Explanation:

In order for a combustion reaction to happen, three components must be present: fuel, oxygen, and heat to cause ignition. When one of these three is removed, the combustion reaction will stop.

CO2 fire extinguishers use the difference in mass of the CO2 and oxygen molecules to stop the fire. Since CO2 is heavier, it will displace any oxygen molecules that are around the flame. When this happens, the supply of the oxygen will be limited or cut-off and the fire will eventually be put out because of the lack of oxygen. This ability to displace oxygen is also what makes using CO2 as fire extinguisher quite dangerous for the user since it pushes away the oxygen that is needed for respiration.

Other ways to put out fire include spraying liquids that absorb the heat to avoid spreading the fire further or spraying substances that coat the fuel (flammable materials) to avoid contact with oxygen gas which can lead to further combustion.

Learn More

  1. Learn more about combustion brainly.com/question/9641392
  2. Learn more about fire extinguisher brainly.com/question/3905469
  3. Learn more about respiration brainly.com/question/1448925

Keywords: carbon dioxide, fire, combustion

8 0
3 years ago
A gas delivers 874 J of heat and then has 159 J of work done upon it. The change in internal energy of the gas is
Nesterboy [21]

The change in internal energy of this gas sample is equal to: c. 715 J.

<u>Given the following data:</u>

  • Quantity of heat = 874 J.
  • Work done = 159 J.

<h3>What is the First Law of Thermodynamics?</h3>

Mathematically, the the First Law of Thermodynamics is given by this formula:

\Delta H = Q-W

Where;

  • \Delta H is the change in internal energy.
  • Q is the quantity of heat.
  • W is the work done.

Substituting the parameters into the formula, we have;

\Delta H =874-159\\\\\Delta H = 715

Change in internal energy (ΔH) = 715 Joules.

Read more on enthalpy change here: brainly.com/question/11628413

3 0
2 years ago
What is your opinion about climate change ?
Scrat [10]

Answer:

Explanation:

Opinion on Climate Change

A poll taken in 2016 shows that 52% of Americans believe climate change to be caused by human activity, while 34% state it is caused by natural changes. Data is increasingly showing that 62% of Americans believe that the effects of global warming are happening now in 2017.

6 0
2 years ago
Read 2 more answers
What stage are these cells in?
vesna_86 [32]
It would be D, telophase
4 0
2 years ago
The porphyrin ring of chlorophyll contains the element ___ and the role of the ring is to
neonofarm [45]
Your answer is Magnesium
6 0
3 years ago
Other questions:
  • Contrast the role of research in science and pseudoscience
    8·1 answer
  • A large percentage of those who were closest to the blast area showed conjunctivitis and swelling of lymph nodes in the head and
    10·1 answer
  • Carbohydrates are to monosaccharides as proteins are to amino acids.
    13·1 answer
  • What do maned geese depend on for survival
    13·1 answer
  • In what plant structures does photosynthesis occur?
    6·1 answer
  • What are some examples of microorganisms
    6·1 answer
  • An enzyme is a large _______ molecule.
    15·2 answers
  • What is the type of artificial selection (or selective breeding) in which scientists breed two genetically different organisms?
    11·1 answer
  • Help please and thank you :)
    11·1 answer
  • Parksion disease Causes of low loss of a control muscle movement include shaking up the body difficulty walking and keeping bala
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!