Oil doesn't dissolve in water, which could be your answer.
Answer:
Acting how bees act. I had that question. :3.
Here's the Answer !
Atomic number = no. of electrons = no. of protons, therefore :
and mass number = no. of protons + no. of neutrons
so,
Answer:
to preserve the integrity of the wildlife refuge, ecosystems and the endangered species.
Explanation:
A national park service manages
1. Pure substances cannot be separated into any other kinds of matter, while a mixture is a combination of two or more pure substances.
2. A pure substance has constant physical and chemical properties, while mixtures have varying physical and chemical properties (i.e., boiling point and melting point).
3. A pure substance is pure, while a mixture is impure.