Answer:
A.
Explanation:
It would be A. because the question is asking how the harmful chemicals have an effect on the environment. This answer also proves that even though we don't mean to harm the environment it still happens because we are using these chemicals for things in our daily life.
The answer is (4). You may recall the term "radiometric dating," which refers to the dating of old artifacts by measuring proportions of certain radioactive isotopes they contain and making calculations based on their estimated half-lives. Geological formations are dated in this way.
Answer:
0.674M of NaOH
Explanation:
Molarity, M, is an unit of concentration defined as ratio between moles of solute and liters of solution.
In the problem, sodium hydroxide (NaOH) is the solute (Less quantity) that is dissolved in 3.77 liters of water, probably.
Thus, molarity of 2.54 mol NaOH in 3.77L is:
2.54mol NaOH / 3.77L = <em>0.674M of NaOH</em>
Answer:
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