Consider the reaction that occurs when copper is added to nitric acid. Cu(s) + 4HNO3(aq) Cu(NO3)2(aq) + 2NO2(g) + 2H2O() What is the reducing agent in this reaction? O Cu O NO3 O Cu(NO3)2 O NO2​

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone, due to its high light availability and warm water temperature

Draw two cyclic constitutional isomers of cis-1

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.