Viết các phương trình phản ứng xảy ra giữa các chất: HCOOH, CH3COOCH=CH2, CH3COOC6H5 với lần lượt các dung dịch sau: NaOH (dư), AgNO3/NH3 (dư), Br2/H2O. 2. Hoàn thành sơ đồ chuyển hoá sau:
A (C6H8O4) + NaOH X + Y + Z
X + H2SO4 E + Na2SO4
Y + H2SO4 F + Na2SO4
F R + H2O
Cho biết E, Z đều cho phản ứng tráng gương, R là axit có công thức C3H4O2

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?

Answer explain why it is not possible to deduce a complete order of reactivity.

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.