Ashu, a 15 year old boy while travelling in car saw that a factory near the outskirt of city caught fire. He came to know from his father that the factory is of petrochemicals. Quickly, he told his father to stop the car. He got down and called the fire brigade. Fortunately, fire brigade arrived within 15 minutes and controlled the fire. (i) What is the substance used as fire extinguisher by firemen and why? (ii) What is the basic principal of controlling the fire? (iii) Which value of Ashu is depicted here?

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Which metals are called noble metals

Answer the questions about this reaction: nai(aq) + cl2(g) → nacl(aq) + i2(g) write the oxidation and reduction half-reactions: oxidation half-reaction: reduction half-reaction: based on the table of relative strengths of oxidizing and reducing agents (b-18), would these reactants form these products? write the balanced equation: answer options: a. 0/na -> +1/na+1e- b. nai(aq) + cl2(g) → nacl(aq) + i2(g) c. +1/na+1e- -> 0 /na d. -1/2i -> 0/i2+2e- e. no f. 4nai(aq) + cl2(g) → 4nacl(aq) + i2(g) g. 2nai(aq) + cl2(g) → 2nacl(aq) + i2(g) h. 4nai(aq) + 2cl2(g) → 4nacl(aq) + 2i2(g) i. nai(aq) + cl2(g) → nacl(aq) + i2(g) j. 0/cl2+2e -> -1/2cl- k. yes