Here is the correct answer of the given question above about the crucible. The crucible and its contents gain mass when heated because <span>it contains a compound that forms a stable and solid oxide. Hope this is the answer that you are looking for. Have a nice day!</span>
The crucible will gain mass upon heating due to the formation of new compounds like oxides
Explanation:
The increase in mass of the crucible and its contents upon heating can be attributed to the formation of new compounds specifically oxides.
For example when a piece of magnesium placed in a crucible is heated and then weighed, there would be an increase mass. This is due to the reaction of magnesium (Mg) with air (O2) resulting in the formation of magnesium oixide (MgO) as per the following equation:
Option A directly tests the cause and effect. Option B simply argues it argumentatively without any solid evidence to show cause and effect. Option C only shows correlation and Option D only shows correlation as well.
