<span>Bonds of reactants are broken and create new bonds to form different products and produces exothermic and endothermic reactions.
You are able to see a chemical reaction occur through a few signs
hope this helps
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Answer:
a. Lack of OH group on 2′ carbon of the deoxyribose
Explanation:
For an organism or a body part from an organism to become a mold fossil, it must be buried in sediment such as sand or mud.
The answer is B. The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.