What are the materials that enter into a chemical reaction and are changed by it?
a) reactants
b)coefficients
c)solutes
d)products

In a chemical reaction, the atoms and molecules that interact with each other are called reactants. In a chemical reaction, the atoms and molecules produced by the reaction are called products.

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Answer is A) reactants

They originally enter the chemical reaction and are changed by it, the products are a result of this procedure.

-be a crystalline solid

- be soluble in water

-conduct electricity

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water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.