Explain, in terms of atoms and ions, why the color of the copper ii sulfate solution changed when the iron was addes and mixed.

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6