Plzz help due today dont have alot of time! The control of is a useful chemical energy transformation.

burning
heating
working

The most efficient way to establish the best possible economizer position is to measure

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.