Milady Chapter 12 Basics of Chemistry (1)
Across
- 3. Solids, liquids and gases are called ? of matter.
- 4. Solid, liquid, gas are ? forms.
- 8. The simplest form of chemical matter.
- 10. An ? is the basic unit of matter with a nucleus at the centre surrounded by negatively charged electrons that move around the nucleus, in orbits.
- 11. A molecule containing two or more atoms of the same element in definite proportions.
- 12. No fixed volume or shape; takes the shape and volume of its container.
- 14. A ? is a chemical combination of two or more atoms in definite proportions.
- 15. Definite volume but takes the shape of its container.
- 16. Subatomic particles with no charge.
- 18. Rigid; has a fixed shape and volume.
Down
- 1. Is an example of compound molecules.
- 2. Subatomic particles with a positive charge.
- 4. Chemical ? are characteristics that can only be determined by a chemical reaction and a chemical change in the substance.
- 5. Compound molecules are also referred to ?
- 6. Chemistry which is the study of substances that do not contain the element carbon but may contain the element hydrogen.
- 7. Physical properties are characteristics that can be determined without a ? reaction and that do not involve a chemical change in the substance.
- 9. The vast majority of ? you come in contact with every day are safe and harmless.
- 13. An element cannot be broken down into a ? substance without a loss of identity.
- 14. Any substance that occupies space and has mass.
- 17. Chemistry which is the study of substances that contain the element carbon.