This is impossible.
Red, green, and blue light combine to produce white light.
All bacteria produce chemicals. Could you possibly be more specific?
yes! fungi produce chemicals that digest plant remains.
Chemicals for chemical nuclear warfare
They produce chemicals to fight infection and later produce chemicals to "turn off" the immune system.
Can chemicals in a fruit produce electricity
hormones
The colors on the color spectrum combined to produce gray are black and white.
water
pheromones .
yes
carbon, oxygen