Calculate the standard enthalpy change for the combustion of 1 mol of liquid methanol, assuming H2O(g) as a product. (Refer to Appendix C (Pages 1088 - 1091) to find the respective standard enthalpies of formation.)

What neutral atom is isoelectronic to mn+4

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases.as altitude increases, air density increases.air pressure and density are lowest at sea level.denser air exerts more pressure than less dense air.

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?