Hey there!!
since bubble reaction means chemical as you said, then yes its a chemical reactant.
Hope this helped an have a great day
Cells need energy to carry out processes like mutation, reproduction and for mobility. The basic source of energy is glucose. If one factor prevents the cell from taking in the source of energy, then one possibility is the cell will weaken, unable to carry out processes and eventually will die.
The answer is B) Electrons flow from negitive end to positive end because opposites attract
