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LAW OF CONSERVATION OF MASS 1) LAW OF CONSERVATION OF MASS Use the LAW OF CONSERVATION OF MASS to fill out the missing information in the table below. Use the example #1 as a guide. Mass of Reactants = Mass of Products Reaction Reactant(s) 1) 2) Product(s) H2 O2 H2O 3.4g 10g 13.4g CH4 O2 12.2g 14g 3) HgO CO2 5) 6) Li Reaction Reactant(s) 1) H2O Hg 2) O2 O2 Li2O 5.7g 24.6g C3H6 O2 11.1g CO2 O2 H2O 3.4g 10g 13.4g CH4 O2 12.2g 14g 3) H2O 5) 15.6g Al2O3 H2O 9.7g 2) Answer the word problems below using the LAW OF CONSERVATION OF MASS. SHOW ALL WORK AND INCLUDE UNITS !!!! CO2 H2O 20.0g HgO Hg O2 23.6g 4) 21.8g Product(s) H2 13.0g 18.9g Al(OH)3 Use the LAW OF CONSERVATION OF MASS to fill out the missing information in the table below. Use the example #1 as a guide. Mass of Reactants = Mass of Products 20.0g 23.6g 4) 1) 6) Li 13.0g O2 Li2O 5.7g 24.6g C3H6 O2 18.9g 11.1g Al(OH)3 CO2 H2O 15.6g Al2O3 H2O 21.8g 9.7g 2) Answer the word problems below using the LAW OF CONSERVATION OF MASS. SHOW ALL WORK AND INCLUDE UNITS !!!! a) Hydrogen and oxygen react chemically to form water. How much water would form if 14.8 grams of hydrogen reacted with 34.8 grams of oxygen? (H2 + O2 H2O) a) Hydrogen and oxygen react chemically to form water. How much water would form if 14.8 grams of hydrogen reacted with 34.8 grams of oxygen? (H2 + O2 H2O) b) When ammonium nitrate (NH4NO3) explodes, the products are nitrogen, oxygen, and water. When 40 grams of ammonium nitrate explode, 14 grams of nitrogen and 8 grams of oxygen form. How many grams of water form? (NH4NO3 N2 + O2 + H2O) b) When ammonium nitrate (NH4NO3) explodes, the products are nitrogen, oxygen, and water. When 40 grams of ammonium nitrate explode, 14 grams of nitrogen and 8 grams of oxygen form. How many grams of water form? (NH4NO3 N2 + O2 + H2O) 3) What is the difference between an open system and a closed system? 3) What is the difference between an open system and a closed system? 4) A solid mass of 25g is mixed with 60g of a solution. A chemical reaction takes place and a gas is produced. The final mass of the mixture is 75g. What is the mass of the gas released? 4) A solid mass of 25g is mixed with 60g of a solution. A chemical reaction takes place and a gas is produced. The final mass of the mixture is 75g. What is the mass of the gas released? 5) If 100g of a substance reacts with 70g of another substance, what will be the mass of the products after the reaction? 5) If 100g of a substance reacts with 70g of another substance, what will be the mass of the products after the reaction? 6) A student adds 15g of baking soda to 10g of acetic acid in a beaker. A chemical reaction occurs and a gas is given off. After the reaction, the mass of the products remaining in the beaker is 23g. Has mass been conserved in this reaction? Explain. 6) A student adds 15g of baking soda to 10g of acetic acid in a beaker. A chemical reaction occurs and a gas is given off. After the reaction, the mass of the products remaining in the beaker is 23g. Has mass been conserved in this reaction? Explain.