To keep with the law of conservation of matter, determine the correct product for the following reaction: pbcl2 (aq) + 2 ki (aq) → + a) pbi2 + kcl2 b) pbi2 + 2 kcl c) 2 pbi + kcl2 d) 2 pbi + 2 kcl

Sex cells from female reproductive organ? 1) mitosis 2) fertilization 3) zygote 4) eggs 5) meiosis 6) sperm

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?