What color would i expect a solution of chromate ions to be after i add an excess of acids?

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

How many moles does 80.0 h2o respresent

How many moles of na2s2o3 are needed to react with 0.12mol of cl2? show work.