What is emission spectrum.

Fish give off the compound ammonia which has a pH above 7. To which class of compounds does ammonia belong?

This calculation shows that burning ___ grams of methane (takes in/gives off) ___ energy

What is the pOH of a 0.00037 M solution of barium hydroxide

Someone give a 100ml of a certain liquid that weighs 20g, could that be water?

Magine a solution of two liquids in which the molecules interact less favorably than they do in the individual liquids. will this solution deviate positively from, deviate negatively from, or ideally follow raoult's law?

A mixture of 0.10 mol of NO, 0.050 mol of H2, and 0.10 mol of H2O is placed in a 1.0-L vessel at 300 K. The following equilibrium is established: 2NO (g) + 2H2 (g) ⥫⥬==N2 (g) + 2H2O (g) At equilibrium [NO]=0.062M.

Which statements accurately describe the polarity and electronegativity of water?

Which of the following could lead to static discharge? water molecules sticking together at a surface the force of gravity pulling an object to Earth a vibration compressing molecules of air the build up of electrons on the atoms of an object

Which requires the removal of heat, melting or freezing? Is it evaporation? What is it? Why?

Waves are the major force of erosion along coasts