Chemistry

5. A solid that forms during a chemical reaction that takes place in a solution.
7. An atom that has lost or gained an electrons and therefore has an electrical charge.
8. a solution, the substance that dissolves.
12. A pure substance that is made up of only one kind of atom
15. The scientific principle that matter is neither created nor destroyed during a chemical change.
17. A mixture in which substances are distributed evenly. (You cannot see the different parts)
20. A homogeneous mixture in which one substance completely dissolves in another substance

1. The elements or compounds produced by a chemical reaction.
2. Used to describe a material that can be hammered or beaten into thin sheets.
3. A substance that is present at the beginning of a chemical reaction
4. A pure substance that forms when two or more elements are held together by a chemical bond; Every molecule of a compound is the same.
6. A vertical column of elements in the periodic table- can show number of valence electrons.
9. An element that usually is a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and typically is dull.
10. A mixture in which substances are not distributed evenly. (You can see the different parts)
11. A combination of two or more substances that are not chemically combined.
13. Hard substance that will break or shatter easily.
14. An element that has physical and chemical properties of both metals and nonmetals; can be a semi-conductor.
16. A horizontal row of elements in the periodic table- shows number of electron shells for an element.
18. In a solution, the substance that does the dissolving
19. The ability of a substance to be pulled into a wire.