science

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Across
  1. 1. When two or more different types of atoms chemically combined.
  2. 3. change:Any characteristics of a material that you can observe without changing the identity of the substance.
  3. 9. Mixture: A mixture in which all parts are mixed together and different substances cannot be viewed within it, and they lose their original particles.
  4. 10. The smallest constituent unit of ordinary master that has the property's of a chemical change.
  5. 11. Any substance made up of only one type of atom.
  6. 12. change: A change from one substance to another.
  7. 13. a heterogenous mixture with particles that never settle.
  8. 14. A type of matter with a fixed composition, it is all the same product.
Down
  1. 2. When two or more substances that are not chemically combined.
  2. 4. When the number of neutrons and protons have different amounts in the nucleus.
  3. 5. of conservation of mass: The mass of all substances that are present before a chemical change (reactants), equals the mass of all of the substances that remain after the change (products)
  4. 6. property: A characteristic of a material that you can observe that produces one or more substances.
  5. 7. Mixture: A mixture in which all parts can be cclearly visible and each part retains its own original particles.
  6. 8. Anything that has mass and takes up space.