What are common compounds of selenium? What are they used for and where are they found? Please answer ASAP, please don’t send scam/spam.

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?

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?