A data table summarizing four everyday processes is shown below
CHEMISTRY · Multi-part · AP · Chemistry · Chemical Reactions · Chemical Reactions
Problem
A data table summarizing four everyday processes is shown below. Several entries have been intentionally left blank.| Process | Identity of principal substance(s) before the process | Identity of principal substance(s) after the process | Type of change (Physical or Chemical) |
|---|---|---|---|
| 1. Dissolving NaCl(s) in water | NaCl(s) + H₂O(l) | ———————— | ———————— |
| 2. Frying an egg (albumen turns white) | ———————— | Denatured proteins + H₂O(g) (steam) | ———————— |
| 3. Sublimation of dry ice | CO₂(s) | CO₂(g) | ———————— |
| 4. Tarnishing of a silver spoon left in air | Ag(s) + O₂(g) | Ag₂O(s) | ———————— |