Question

answer the following questions. remember to think about classifying matter an
1 what are all the differences between cuso₄ and cuso₄ (aq)?

1. why was air classified as a homogeneous mixture and not a compound?
2. what is the easiest way to determine if something is an element?

4 if you were to look at the atoms in the copper wire, what would you observe?

Explanation:

Step1: Define physical - state difference

$CuSO_4$ is solid, $CuSO_4(aq)$ is aqueous solution.

Step2: Define particle - interaction difference

In $CuSO_4$, ions are in fixed lattice. In $CuSO_4(aq)$, ions are surrounded by water molecules and can move freely.

Step3: Define conductivity difference

Solid $CuSO_4$ has low conductivity. Aqueous $CuSO_4$ conducts electricity well due to mobile ions.

Answer:

1. Physical - state: $CuSO_4$ is solid, $CuSO_4(aq)$ is in solution.
2. Particle - interaction: In $CuSO_4$, ions in lattice; in $CuSO_4(aq)$, ions surrounded by water and mobile.
3. Conductivity: $CuSO_4$ has low conductivity, $CuSO_4(aq)$ conducts well.