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Please write 5 signs that a chemical reaction is occuring.

1. Please write 5 signs that a chemical reaction is occuring. 1. 2. 3. 4. 5. 2. Write down each formula and label the Subscripts and Co-effecients. Define a Subscript? Define a Co-Effecients?. 1. 2Na 2. NaOH 3. 2CaCO 3. Reactant Chem Product. 3.

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Please write 5 signs that a chemical reaction is occuring.

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  1. 1 Please write 5 signs that a chemical reaction is occuring. 1. 2. 3. 4. 5.

  2. 2 Write down each formula and label the Subscripts and Co-effecients. Define a Subscript?Define a Co-Effecients? 1. 2Na 2. NaOH 3. 2CaCO3

  3. Reactant Chem Product 3 P4 + 6N2O  P4O6 + 6N2 1. Write and complete a RCP Chart? 2. Are the numbers of Atoms of each element in the reactant and products equal? 3. Is the equation balanced?

  4. 4 Write a Chemical formula for Methane. H H C H H

  5. 5 Are the follow equations balanced? Na + Cl2 NaCl 3H2 + N22NH3

  6. 5Pre-AP Balance the following equation? Na + Cl2 NaCl H2 + N2NH3

  7. 6 Label the Parts (A,B and C) of the Equation? B A ______________  ______________ C

  8. Reactant Chem Product 7 2H2O2 2H2O + 2O2 1. Write and complete RCP Chart? 2. Are the numbers of Atoms of each element in the reactant and products equal? 3. Is the equation balanced?

  9. 8 2Na + Cl2 NaCl What is the Co-Efficient for sodium? What is the Subscript for Chlorine? How many Na Molecules are present?

  10. Reactant Chem Product 9 2Bi + 4HNO3 Bi(NO3)3 + 2H2O + NO 1. Write and complete a RCP Chart? 2. Are the numbers of Atoms of each element in the reactant and products equal? 3. Is the equation balanced?

  11. 10 Write at least 2 sentences that describes the Law of Conservaation of Mass. How are chemical formulas and equations different.

  12. 11 Record the total number of atoms represented in each of the following.Record how many elements are in the following chemical formulasRecord how many molecules are present in each of the following. 1. C12H22O11 2. 3CO2

  13. 12Pre-AP Balance the Following Equation. Na2SO4 + Mg  Na + MgSO4

  14. 12 Is the following Equation Balanced? Na2SO4 + Mg  Na + MgSO4

  15. 13 How many elements are present in the follow equation? 1. C12H22O11 2. 3CO2

  16. 14 How many Oxygen atoms are present in the follow equation? 4HNO3

  17. 15 Draw 3 Water molecules.

  18. 16 Draw the following molecules. 1. 2HCl 2. 3H2O23. 2H 4. O2

  19. 17 Draw a Picture to represent the Law of Conservation

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