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Study guide - Final exam Earth, Space & Physical Science 6th Grade Aída Ostos Molecular Masses: MS-PS1-1. Develop models to describe the atomic composition of simple molecules and extended structures Solve each problem 🧪 Problem 1: Lucas and Maria were studying two gases: Carbon Dioxide (CO₂) and Sulfur Dioxide (SO₂). Each balloon contains the same number of molecules. Atomic Masses Table: • C = 12 u • O = 16 u • S = 32 u 1. Complete the table by counting the number of atoms in each molecule. 2. Calculate the molecular mass by multiplying and summing the atomic masses. 3. Answer the questions below. • How many total atoms does each molecule have? • What is the molecular mass of each gas? • Which gas is heavier? • Which balloon is heavier if both contain the same number of molecules? • If a feather is placed inside each balloon, in which gas would it fall slower? Explain your reasoning. Compound Element Number of Atoms per Molecule Atomic Mass (u) Total Mass (u) [Write name] [Element 1] [ ] [ ] [ ] [Write name] [Element 2] [ ] [ ] [ ] TOTAL [ ] Study guide - Final exam Earth, Space & Physical Science 6th Grade Aída Ostos 🧪 Problem 2: Sophie and Daniel tested two gases: Oxygen (O₂)...