Examlex
Write an equation for a null hypothesis and research hypothesis for a one-sample chi-square test involving three groups.
Deshielded
A term used in nuclear magnetic resonance (NMR) to describe a nucleus whose electron cloud is perturbed in such a way as to reduce the shielding effect, often leading to an upfield shift in the NMR spectrum.
Dibutyl Ether
An organic compound formed by the dehydration of butanol, used as a solvent and in chemical synthesis.
Atomic Number
The number of protons in the nucleus of an atom, which defines the element's identity.
Mass Number
The total number of protons and neutrons in an atom's nucleus, representing the atom's mass more closely than the atomic number.
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