a 2-dimensional 3x3 array of ints, has been created and assigned to tictactoe. write an expression whose value is that of the first element in the first row.

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³