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What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
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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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Chemistry, 22.06.2019 18:00
Heat is the total potential energy of a substance that can be transferred. true false
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The proton number or is equal to the number of in the atom....
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