Đốt cháy 3,7g chất hữu cơ X cần dùng 3,92l O2 (đktc) thu được CO2 và H2O có tỉ lệ mol 1:1 X tác dụng với KOH tạo ra 2 chất hữu cơ .CTPT của X là

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

answer; natural resources;

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.

the objects have the same charge is correct.

nathan lee