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Which pair does NOT correctly match an element symbol to its full name?
Q13: Which of the following diagrams illustrates an
Q15: Which of the following choices correctly numbers
Q23: An important part of writing a formula
Q27: Which of the following molecules is NOT
Q33: What ionic compound has the formula Na<sub>2</sub>O?<br>A)
Q34: In which of the following reactions is
Q46: Two sealed boxes are filled with gas.
Q65: An atom of carbon containing 7 neutrons
Q84: Which of the following statements best describes
Q90: What is the identity of I in