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Test #3 Review Questions

Test #3 Review Questions . 8SO 3. Identify the coefficient in the formula below and tell what it means. 8SO 3. Identify the coefficient in the formula below and tell what it means. TELLS THE NUMBER OF MOLECULES PRESENT- IN THIS CASE, THERE ARE 8 MOLECULES.

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Test #3 Review Questions

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  1. Test #3 Review Questions

  2. 8SO3 Identify the coefficient in the formula below and tell what it means

  3. 8SO3 Identify the coefficient in the formula below and tell what it means TELLS THE NUMBER OF MOLECULES PRESENT- IN THIS CASE, THERE ARE 8 MOLECULES

  4. 2AgNO3 + CaCl2 → AgCl + Ca(NO3)2 Chemical equations like the one below represent…

  5. 2AgNO3 + CaCl2 → AgCl + Ca(NO3)2 Chemical equations like the one below represent… CHEMICAL CHANGES

  6. 8S + 12O2 → 8SO3 Identify the products and reactants in the equation below.

  7. 8S + 12O2 → 8SO3 Identify the products and reactants in the equation below. REACTANTS PRODUCTS

  8. 8SO3 Identify the subscript in the formula below and tell what it means

  9. 8SO3 Identify the subscript in the formula below and tell what it means TELLS THE NUMBER OF ATOMS PRESENT- IN THIS CASE, THERE ARE 24 ATOMS OF OXYGEN

  10. temperature changegas produced color change The list below identifies what…

  11. temperature changegas produced color change The list below identifies what… Signs that a chemical change has occurred

  12. Cu + CO2CuCO2 Determine if the equation below is balanced or unbalanced.

  13. Cu + CO2CuCO2 Determine if the equation below is balanced or unbalanced. Cu = 1 C= 1 O = 2 Cu = 1 C= 1 O = 2 BALANCED

  14. Elements in the same group have what in common?

  15. Elements in the same group have what in common? Valence electrons Chemical properties

  16. What is the Law of Conservation of Mass?

  17. What is the Law of Conservation of Mass? Matter cannot be created nor destroyed

  18. Where are non-metals located on the periodic table?

  19. Where are non-metals located on the periodic table? Right side of the stair-step

  20. CO2 H2O NaCl SO4 The formulas below represent examples of…

  21. CO2 H2O NaCl SO4 The formulas below represent examples of… Compound molecules

  22. 7CaCl2 How many atoms of Calcium and Chlorine are in the formula below?

  23. 7CaCl2 How many atoms of Calcium and Chlorine are in the formula below? 7 CALCIUM ATOMS 14 CHLORINE ATOMS

  24. 4CuSO4 How many molecules are present in the formula below?

  25. 4CuSO4 How many molecules are present in the formula below? 4 MOLECULES

  26. Cl+ O2Cl2O3 Determine if the equation below is balanced or unbalanced.

  27. Cl+ O2Cl2O3 Determine if the equation below is balanced or unbalanced. Cl = 1 O = 2 Cl = 2 O = 3 UNBALANCED

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