Why does mixing Copper sulphate and steel wool become hot?

okay, im doing this chemistry asѕessment and i need to find websites that tell me how temperature affects copper chloride and...

In what ways low carbon steels are hardened

ok I guess hot water is lighter than cold water but what about hot air and cold air? we can breathe cold air but not hot air ...

Why does chemical weathering occur more quickly in a hot climate? Can anoybody help me out here im trying to do my homework a...

If oils and water don't mix how can you explain tea? It smells and tastes like the oils of the plant and still you can't sepa...

This is an extra credit question for my chemistry class that I just started yesterday. If any one can give me a reliable webs...

If evolution is real then how did none living matter become living matter?

I've always wondered why not! Why isn't there a "freezer" and no, I am not talking about the second part to a refrigerator....

What can I put in a fire to make it change colors?

Finish the sentence... Convection is due to a hot liquid or gas...? One word missing. Thanks