Encircle the letter of the correct answer. 1. What is a mixture? A. Mixture is a combination of at least two substances as such that there is chemical reaction occurs. B. Mixture is a combination of at least two substances in which new material is formed when these substances combined. C. Mixture is a combination of at least two substances in such a way that no chemical reaction occurs. D. Mixture is a combination of at least two substances in which the identities of each substances are changed.
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