How many moles of pb (no3)2 are required if 8 moles of pbcl2

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods

The excretory system, need answers for all: )