For the reaction shown, identify the oxidation half-reaction and the reduction half-reaction. KNO3 → KNO2 + O2
Which pair of half-reactions represents the balanced half-reactions?
o
N5+ + 2e →N3+
02
→02 + 4e
O 2N5+ + 4e → 2N3+
202- → 02 + 4e
4N5 + 2e → 4N3+
202 → 202 + 4e

Variables,control,conclusion and finally scientific theory

Ch4 is nonpolar and insoluble in water. since all of the hydrogen atoms are evenly spread around the carbon atom even through the c h bond is polar all the poles cancel each other out.

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy