A. a mixture is a combination of two or more substances in which each substance retains its own properties.
answer: 3g. 17kg+3 ÷ 0.25
Answer:
the neutul atom has the same number of protons in its neclues as positive in its electron cloud#
Explanation:
Answer:
<h3><em>The process in which green plants prepare their food in their body by using minerals and carbon dioxide in the presence of sunlight .</em></h3><h3 /><h3 /><h3><em>Hope</em><em> it</em><em> </em><em>is </em><em>helpful</em><em> to</em><em> you</em><em> </em></h3><h3 />
Answer:
B. pOH = 14 - pH and D. pH = 14 - pOH.
Explanation:
Hello,
In this case, we must remember that pH and pOH are referred to a measure of acidity and basicity respectively, since pH accounts for the concentration of H⁺ and pOH for the concentration of OH⁻ in a solution. In such a way, since the maximum scale is 14, we say that the addition between the pH and pOH must be 14:

Therefore, the correct answers are B. pOH = 14 - pH and D. pH = 14 - pOH since the both of them are derived from the previous definition.
Best regards.