Chemistry Quiz

unit 1

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Last updated: March 24, 2026

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Hint	Answer
Everything EXCEPT for covalent radius .... down a group	decreases
Why?	increased Shielding
Everything EXCEPT for covalent radius .... across a period	Increases
Why?	Nuclear charge increases
Define Electronegativity	measure of attraction for the electrons in a bond
What intermolecular force do ALL atoms and molecules have?	LDFs
When can a molecule can be describes as polar?	permanent dipole
what can hydrogen bonding occur between	nitrogen
	oxygen
	fluorine

Hint	Answer
Why do ammonia and water have high boiling points?	hydrogen bonding
what is oxidation	loss of electrons
what is reduction	gain of electrons
what is a use of oxidising agents	bleaching
why do LDFs happen	attraction between temporary and induced dipoles
What is an oxidising agent?	accepts electrons
what is a reducing agent?	donates electrons
Would hexane be soluble in water?	no

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