Pb(NO3)2(aq) + 2KI(aq) → Pbly(s) + 2KNO3(aq) If we have 0.1 L of 0.10 M Pb(NO )2, what volume of 0.10 M KI(aq) should we
add to react with all the Pb(NO3)2(aq)?

HELP PLEASE

How did planetesmals form planets? a. they broke apart into smaller chunks. b. they collided and stuck together. c. they cooled and pulled ice together. d. they began to rotate.

Find the mass, in grams, of 5.00*10^23 molecules of f2

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms