Acertain shade of blue has a frequency of 7.04 × 1014 hz. what is the energy of exactly one photon of this light?

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o

I’m an electrically neutral atomic any element, there are equal numbers of