Based on the electronegativity values, which molecule has a polar covalent bond? * Answers
A) Nitrogen molecule (N2)
B) Sodium fluoride
C) Sulfur teteraiodide
D) Dihydogen monoxide

An observation that requires measurement is called quantitative observable or qualitative

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.