Write 151.5 cm to meters in the correct significant figures

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

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