CHEM 104 Final Exam; Questions and Answers 100% Solved
CHEM 104 Final Exam; Questions and Answers 100% Solved A sample of aluminum contains 2.91 × 1022 atoms of aluminum. What is the mass of this sample? [Molar mass: Al, 26.98 g/mol] Correct answer 1.30 g What is the number 3,000 written in scientific notation using the proper number of significant figures? Correct answer 3 × 10^3 Which statement about the modern periodic table is FALSE? Correct answer Elements in the same period share similar chemical and physical propertie
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