Class students. PLease answer these questions. Very urgent. Answer only if u know
Don't post unnecessary answers.
Q1. Describe the experiments done by Lavoisier.
Q2.What conclusions Lavoisier drawn frin his experiments.
Q3.What is vitiated air and how you can create normal air from vitiated air.
Q4.What conclusions Lavoisier drawn regarding respiration.
Q5. Suma says digestion and respiration are both interdependent on each other.How do you support Suma.
Q6.Both photosynthesis and respiration processes are linked with each other.Explain in what way both are linked.
Answers
Answer:
Q1.In experiments with phosphorus and sulfur, both of which burned readily, Lavoisier showed that they gained weight by combining with air. ... He described how he had recently heated mercury calx (a red powder) and collected a gas in which a candle burned vigorously
Explanation:
Q2.matter is not created or destroyed in a chemical reaction. Explanation: He gave the law of the conservation of the mass that generally tells us that the mass remains conserve. He studied the chemical reactions and stated that the chemical cannot be created or destroyed.
Q3.Air containing a reduced percentage of oxygen. Explanation: when air is mixed with the various gases given off in mines or by workers, the oxygen concentration will reduce hence it is called vitiated air.
Answer:
1. in experiments with phosphorus and sulphur, both of which burned readily. lavoisier showed that they gained weight by combining with air. he described how he had recently heated mercury calx (a red powder) and collected a gas in which a candle burned vigorously.
2. from lavoisier experiments, he concluded that mass always remains conserved at the end of a chemical reaction. energy can neither be created nor destroyed but it can change form only. this was the basis of the law of conversation of mass and energy.
3. air that has been rendered impure by the breathe of workers and horses. or by being mixed with the various gases given off in mines. it is frequently called return air.
4. he eventually concluded that common was not a simple substances. instead, he argued, there were two components: one that combined with the metals and supported respiration and the other an asphyxiate that did not support either combustion or respiration.
5. the well known digestive system has a basic but important function. first, food goes down to the throat, and leads to the digestive system. what makes this path is the epiglottis, which opens when air comes through and closes when comes down. the digestive system breaks down food into simpler substances that the body can use including proteins. this helps the respiratory system because the lungs need nutrients. the respiratory system helps the digestive system by giving oxygen to the digestive system. another basic, but important system is the skeletal system.
6. photosynthesis produces the oxygen to replenish oxygen that is used up by living organisms during respirations. is one of the reactants plants need to perform photosynthesis and cellular respiration are both part of a mutually beneficial relationship.
HERE IS UR ANSWER.
THANK YOU.