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Here are the answer (in order) for Questions from Chem328MatterGeneralInformation Video:
1a) Mixture - more than one type of particle (base unit)
1b) Pure Substance - ONLY one type of particle (base unit)
2a) Two mixtures : Heterogeneous and Homogeneous
2b) Two substances: Element and compound
3a) Chocolate chip ice cream and vanilla ice cream
3b) Argon (Ar) and Carbon dioxide (chemical formula is C1O2)
4) Two or more elements chemical combined in a fixed mass ratio. Carbon monoxide (chemical formula is C1O1)
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