Pb(NO3)2 +2KI 2K(NO3) + Pb12 What type of chemical reaction is taking place in this chemical equation?*
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2

Explain how to convert from one unit to another in the metric system.

How is it possible for someone to put an ear to a wall and hear someone in the next room?     a.sound waves can travel though solids.    b.the waves travel from room to room via air.    c.there must be some air in the wall so the sound can travel through it.    d.sound waves change to electromagnetic waves and then back again.