Land breeze sea breeze,ventilation,etc
BE CAREFUL! If it is a controlled lab wear saftey equiptment. But it can blow up. So careful...
The answer is b_______________\\\
Answer:
Hi.. U should do like this
Cu + S - - - >Cu2S
Mixtures are combinations of materials that can be separated by in most cases time. For instance, oil and water is a mixture. You can tell this by placing the two chemicals in a container and shaking them. They will mix and look like one substance, however, they will separate into the two liquids after some time is given. Assuming that "pure substance" is a solution, a substance is similar to a mixture, but the materials used in the solution are not separable. Over time the materials in the containing will not separate. I believe this is the answer you are looking for.
