Mixture typically melt at different temperature than the pure substance they are composed of. Brass is a of copper and zinc, and it melts at temperature between 820 degrees Celsius (°C) and 1030 degrees Celsius (°C). Why might different samples of brass melt at different temperatures?

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what

Can someone give me the answer to this question? you so much

What do scientific models predict will happen to earth's temperature if current trends continue unmitigated? a. earth will heat and cool in a natural cycle b. earth will heat up and then return to an ice age c. earth will continue to warm at a rate of 0.25 c per decade d. earth will start to cool at a rate of 0.25 c per decade appex