Will the current in a circuit increase or decrease if a 10 resistor is removed by a 20 resistor?

Enough of a monoprotic weak acid is dissolved in water to produce a 0.0172 m solution. if the ph of the resulting solution is 2.39 at 20 °c, determine the pka for the acid.

What is the mass of 0.46 mol of mgcl2

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at