35 points pleeaase help!! A ray of light emits 4.33 x 10-14 J of energy. What is the wavelength of the light? E= 4.33 x 10-14 =?
h= 6.626 x 10-34 c=3 x 108
v= v=
Answer with units:

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?

What is the value of the standard enthalpy of formation of an element in its most stable form?