Which compound is covalent?
1. CaCl2
2. N20
3. NaBr
4. KF...
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What does the symbol (–hfus) indicate in a phase change?
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Nan element’s square on the periodic table, the number with the greatest numerical value represents the
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What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures
Answers: 1
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