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Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?
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Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
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Which of the following is a physical property flammability heat of combustion solubility and toxicity
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Write a balanced equation for the combustion of gaseous ethane (c2h6), a minority component of natur...
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