What pressure will be needed to reduce the volume of 77.4 L of helium at 98.0
kPa to a volume of 60.0 L?*

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Compare and contrast physical changes with chemical changes.