The molecular liquid dichloroethane (C2H4C) has a density of 1.25 gmL, while the

Question

The molecular liquid dichloroethane (C2H4C) has a density of 1.25 gmL, while the molecular liquid dibromoethane (C2H,Br2) has a density of 2.17 gmL (a) When 69.1 mL of C,H4C2 and 38.9 mL of C,H4Br2 are mixed, a clear liquid solution forms. Is this a chemical or a physical change? Is the solution a pure substance, a homogeneous mixture or a heterogeneous mixture? (b) Is the density of this solution a chemical or a physical property? (c) Assuming that the volumes are additive upon mixing, what is the density of the solution? g mL

Explanation / Answer

The molecular liquid dichloroethane (C2H4C) has a density of 1.25 gmL, while the

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