Please help, and answer the question below:) it is for marks so please do write it into 2 sentences!

Which compound contain an iron with a 3+ charge

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?