True or false? Chloride is the major extracellular anion in plasma.

Which of the following electrolytes would be increased in the serum if the blood specimen was hemolyzed?

One notable exception where hypochloremia does not mimic hyponatremia is:

The majority of the iron in whole blood is:

Three point charges, -2.00 μC, +4.00 μC, and +6.00 μC, are located along the x-axis as shown in the figure. What is the electric potential (relative to infinity) at point P due to these charges? 

When a current flows through a metal wire, the moving charges are

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (There could be more than one correct choice.)

Two tiny grains of sand having charges of 4.0 μC and -4.0 μC are situated along the x-axis at x1 = 2.0 m and x2 = -2.0 m. What is electric potential energy of these grains relative to infinity? 

The length of a certain wire is doubled and at the same time its radius is reduced by a factor of 2. What is the new resistance of this wire?

An ideal parallel-plate capacitor consists of two parallel plates of area A separated by a distance d. This capacitor is connected across a battery that maintains a constant potential difference between the plates. If the separation between the plates is now doubled, the magnitude of the charge on the plates will