Conservation of Mass

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Across
  1. 1. a(n) _______ chemical equation has a different number of atoms per element in the products and reactants
  2. 3. reactants and products have the same ____. (hint: the amount of matter in an object)
  3. 5. the big number before a compound that tells how many molecules there are
  4. 6. in a balanced chemical equation with four Hydrogen atoms in the reactants, there would be _____ Hydrogen atoms in the products.
  5. 10. the small number after an element/compound that tells how many atoms there are
  6. 14. Does this chemical reaction show the conservation of mass (yes or no)? HBr + NaOH —> NaBr + OH
  7. 15. the substances after the chemical reaction
Down
  1. 2. the law that states that mass stays the same; ____ of mass.
  2. 4. the amount of atoms in the reactants and products in a balanced equation is the ____.
  3. 7. the substances before the chemical change/reaction
  4. 8. Does this chemical reaction show the conservation of mass (yes or no)? NaCl + AgNO3 —> NaNO3 + AgCl
  5. 9. 5CH₄ has how many Carbon atoms? (spell the number)
  6. 11. a(n) _______ chemical equation has the same number of atoms per element in the products and reactants
  7. 12. H₂O₂ has how many Hydrogen atoms? (spell the number)
  8. 13. this symbol represents the chemical change happening