Which is not a characteristic of a compound? 1.different samples have different properties
2.can be represented by a chemical formula
3.a pure substance made of two or more elements
4.has different properties from its component elements

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

The diagram shows the relationship between scientific disciplines.the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a.physics b.biology c.chemistry d.metallurgy