What is the relationship between the enthalpy (AH) and entropy (AS) of a reaction that is spontaneous at higher temperatures but not at lower
temperatures?
A. +AH-AS
Β. -ΔΗ,-AS
C. -AH,+AS
D. +AH, +AS

What substance has a mass of 9.5g and volume of 2.1cm^3

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.