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Chemistry, 22.06.2019 00:30
This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.
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What is the independent variable in this investigation? mass volume sample number substance density
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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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3HNO3 + Na3PO4 -> H3PO4 + 3 NaNO3 how many grams of NaNO3 are made if it required 15.4mL of 0.5 M...
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