gemma

4. is a type of mixture in which the individual substances are not evenly mixed
5. is anything that has mass and takes up space
8. is a property of a substance that is observed when a substance undergoes a chemical change
10. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign
12. the amount of a substance (solute) present in a given amount of solution or solvent
13. is a type of substance containing atoms of two or more different elements chemically bonded together
14. a joining or merging of different parts or qualities in which the component elements are individually distinct
15. is a matter with a composition that is always the same
16. the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch
18. is a small particle that is a building block of matter
20. is a characteristic of a substance that can be observed or measured without changing the identity of the substance

1. a substance that takes part in and undergoes change during a reaction.
2. consist of only one type of atom
3. the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants
6. is a type of mixture in which the individual substances are evenly mixed
7. an article or substance that is manufactured or refined for sale
9. the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great
11. is matter that can vary in composition
17. means to form a solution by mixing evenly
19. a coherent, typically large body of matter with no definite shape