3. Describe what ion could form if this element lost these valence electrons: a
Anion, Ca?
o
Cation, O2
о
Anion, o?
0
Cation, Ca?
Helppp

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together

Acontrol during an experiment. might change remains constant does not exist does change

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust