Across
- 4. - group of students according to their academic ability. This is also known as ability grouping where students place together in respect to their achievements or similar instructional level
- 5. -consisting of different, distinguishable parts or elements. The word is used in a more specific way in the context of chemistry to describe a mixture consisting of two or more different substances or the same substance in different phases of matter
- 6. - able to dissolve other substances
- 9. - starting materials in a chemical reaction. Reactants undergo a chemical change in which chemical bonds are broken and new ones formed to make products
- 10. - the ability to be dissolved, especially in water.
- 11. - substance made by mixing other substances together.
- 12. - Most acids contain a hydrogen atom bonded that can release (dissociate) to yield a cation and an anion in water. The higher the concentration of hydrogen ions produced by an acid, the higher its acidity and the lower the pH of the solution.
- 13. - reducing the concentration of a given solute in its solution. The chemist can do it simply by mixing with more solvent
- 14. - a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion.
Down
- 1. substance that is formed as the result of a chemical reaction. In a reaction, starting materials called reactants interact with each other. After passing through a high energy transition state (achieving the activation energy for a reaction),
- 2. - A base is a substance that reacts with an acid in an acid-base reaction.
- 3. - chemical solutions that have high concentrations of a large amount of solute in the solution. If a solution is concentrated to the point where no more solute will dissolve in the solvent, it is said to be saturated.
- 7. Mass - average mass of atoms of an element, calculated using the relative abundance of isotopes in a naturally occurring element. Atomic mass indicates the size of an atom.
- 8. - smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds.
- 10. - the minor component in a solution, dissolved in the solvent.
