Which is not true about the pH scale? The pH scale measures acids and
bases from 1 to 14 on a scale.
The pH scale focuses on the
concentrations of H+ and OH jons
In a solution.
The pH scale was invented by
Svante Arrhenius.
A very strong acid would have a
pH reading close to 1.

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.

What is the most useful equation for electric power?