For each of the following problems you must complete the following steps: 1. Balance the chemical equation (to determine mole ratios)
2. Determine the molar mass of all molecules/compounds
3. Convert the balanced chemical equation into mass (grams) for reactants and products to show the law of conservation of mass.

___ H2O2  ___O2 + ___H2O

___H2CO3 ___ H2O + ___ CO2

___HCl + ___O2  ___H2O + ___ Cl2

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each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

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