Science 10

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Across
  1. 2. A positively charged ion, the result of losing one or more electrons.
  2. 3. You start balancing the _________ when you are balancing reactions.
  3. 7. All atoms we start with must be accounted for. However they may change their ________________.
  4. 9. A.K.A The left side.
  5. 12. An atom that has become charged by gaining or losing one or more electrons.
  6. 13. A statement that summarizes an observed pattern in nature.
  7. 15. The prefix for 10.
  8. 16. The prefix for 3.
  9. 17. Identifies the reactants and products in a chemical reaction using only the names of the elements and compounds.
  10. 19. A neutral compound composed of two or more non-metallic elements held together by covalent bonds.
  11. 22. A neutral compound that consists of positive and negative ions held together by a ionic bond.
  12. 23. Something that is lost or gained in every chemical reaction.
  13. 24. This happens when a base is added to an acid.
Down
  1. 1. A bond formed by two or more atoms sharing one or more pairs of electrons.
  2. 4. The prefix for 7.
  3. 5. A.K.A The right side.
  4. 6. A group of atoms with a charge.
  5. 7. Represents the reactants and products in a chemical reaction using their symbols or formulas.
  6. 8. Are substances that form in a chemical reaction.
  7. 10. Neutral on the pH chart.
  8. 11. Involves planning a series of data-gathering operations that will provide a basis for testing a hypothesis or answering a question.
  9. 14. How many bonds does Carbon form?
  10. 18. The bond formed by the transfer of electrons from one atom to another.
  11. 20. A negatively charged ion, the result of gaining one or more electrons.
  12. 21. The opposite of Acid.