To answer your question, the answer is number 1. hope this help
well according to what i know....headlights only let you see about 350 feet ahead...hope it helps :)
The chemical reaction is written as:
2Zn + O2 = 2ZnO
We are given the amount of the product to be produced from the reaction. We use this value and the relation of the substances in the reaction to calculate what is asked. We do as follows:
2.10 g ZnO ( 1 mol / 81.408 g ) ( 1 mol O2 / 2 mol ZnO ) ( 32 g / 1 mol ) = 0.414 g O2 is needed
True when the boron control rods are lowered it slows the reaction
