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Antoine Lavoisier discovered the law of conservation of mass in 1789. The law states that mass is neither created nor destroyed in a chemical reaction. It laid the foundation for modern chemistry and explained the concept of closed systems in reactions. Key Points: 1. Lavoisier is known as the "Father of Modern Chemistry." 2. His work on combustion helped explain the role of oxygen in chemical reactions. 3. The conservation of mass law applies universally to all chemical processes. 4. It formed the basis for stoichiometry in chemistry. 5. He was instrumental in developing a systematic chemical nomenclature. Bee Facts: • 1783 (a): Incorrect; Lavoisier’s early works started in this period. • 1785 (b): Incorrect; related to experiments on combustion. • 1789 (c): Correct, year of publishing his work. • 1792 (d): Incorrect; Lavoisier was involved in political activities by then.
Statement:
I) No A is B
II) No B is C
III) Some D are C
IV) All D are E
Conclusion:
I) Some E are not D
II) Some A are C
III) No C is A
Statements: Some ractangle are envelope.
All envelope are square.
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In the questions given below there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be ...
Which of the following means K is grandmother in law of M?
How many children does Mr. Raman has?
I. Mr. Raman has eight sons and each has one sister.
II. Number of sons of Mr. Raman is eight times ...
In this question, after two statements I and II two conclusions have been given. Assuming the given in the statement together as truth, consider both th...
Statements:
All Pearl are Flower.
Some Bud are Pearl.
No Flower is a Stem.
Conclusions:
I. Some Bud are Flower is a p...