[size=4]For numbers 1-5:[/size]



[size=4]A science class collected three water samples from different sources. They performed visual inspection and evaporation tests.[/size]

[table][tr][td][size=4]Sample[/size][/td][td][size=4]Appearance[/size][/td][td][size=4]Residue after

Evaporation[/size][/td][td][size=4]Magnetic

Response[/size][/td][td][size=4]Layers

Observed[/size][/td][/tr][tr][td][size=4]A[/size][/td][td][size=4]Clear[/size][/td][td][size=4]White crystals[/size][/td][td][size=4]No[/size][/td][td][size=4]None[/size][/td][/tr][tr][td][size=4]B[/size][/td][td][size=4]Cloudy[/size][/td][td][size=4]Sand particles[/size][/td][td][size=4]No[/size][/td][td][size=4]Yes[/size][/td][/tr][tr][td][size=4]C[/size][/td][td][size=4]Clear[/size][/td][td][size=4]No visible residue[/size][/td][td][size=4]No[/size][/td][td][size=4]None[/size][/td][/tr][/table]



[size=4]1. Which sample is most likely a homogeneous mixture?[/size]

[size=4]Which sample is clearly heterogeneous based on physical evidence?[/size]

[size=4]Which sample is most likely a pure substance?[/size]

[size=4]Why does Sample A remain classified as a mixture even after crystals were formed?[/size]

[size=4]If magnetic particles were later found in Sample B, what would this confirm?[/size]