Which energy resource has the lowest environmental risk and is inexhaustible?
A)solar
B)biomass
C)hydroelectric
D)coal

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

What causes the appearance of lines in a emission spectrum

The term gas is limited to those substances that exist in the gaseous state at