TARGET MASS OF Pbl2, 8 (given by lab instructor) colo
g
You will be given both reactants in their solid form. Calculate the mass of each reactant that
would be required to synthesize exactly this target mass of Pbl, assuming that the reaction
goes to completion. Use the BCA table to help organize your thoughts. Don't forget to
convert between grams and moles throughout your calculations!
Pb(NO3)2 (
+
2 Klag)
Pbl (5)
+ 2 KNO (2)
Before
Reaction
Change
(reaction)
After
Reaction

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.