If the following three values were utilized to perform a calculation involving multiplication, the answer should be given to what number of significant figures?
A NaOH (aq) solution and an acid-base indicator are used to determine the molarity of an HCl (aq) solution. A 25.0-milliliter sample of the HCI
(aq) is exactly neutralized by 15.0 milliliters of 0.200 M NaOH(aq).

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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