Answer:
A variable is the parameter over which changes can be made and observed so as to determine the outcome of the experiment. ... An independent variable is the one which can be changed or manipulated by the experimenter so as to observe the impact of such change over the dependent variable.
Explanation:
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
- Learn more about combustion brainly.com/question/9641392
- Learn more about fire extinguisher brainly.com/question/3905469
- Learn more about respiration brainly.com/question/1448925
Keywords: carbon dioxide, fire, combustion
The answer to this question would be: microfilament
Microfilament or actin filament is the organ where myosin binding in muscle cells. This bind is making the tensile strength of the muscle. When muscle contract, the myosin will move to the actin at the outer side, makes the muscle length become shorter.
Answer:
the balance is everything must have a process of living and dying in an ecosystem. such as, an animal killing another animal for prey to eat it, that is a process. in a water ecosystem, fish lay eggs and come out and usually get eaten by a bigger animal, as they grow up, usually by bigger fish itself such as the Grayling.
Explanation:
Answer:
50% or 1/2 of the children will be heterozygous.
50% or 1/2 of the children will be recessive hom0zygotic.
Explanation:
