What is defined as the basic unit in the metric system that describes a quality? A. Base Unit
B. Data Table
C. Dependent Variable
D. Extrapolate

Can you me with this i really appreciate it

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.