Use the drop-down menus to complete the statements. ___are pure substances that cannot be broken down into a simpler form. are units of two or more atoms. ___ are the smallest possible particles of an element. ___are pure substances made of two or more atoms of different elements.
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What type of reaction fuels the processes seen here?
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Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?
Answers: 1
Use the drop-down menus to complete the statements. ___are pure substances that cannot be broken dow...
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