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Questions and Answers
Which branch of chemistry is mainly concerned with the identification of substances present in a sample?
Which branch of chemistry is mainly concerned with the identification of substances present in a sample?
In which state of matter does a substance have both a definite shape and a definite volume?
In which state of matter does a substance have both a definite shape and a definite volume?
What is mass defined as in chemistry?
What is mass defined as in chemistry?