Answer:
Both are only physical changes.
Explanation:
Nothing about the objects chemically change, and they remain the same.
Their changes arent due to heating/cooling.
Answer:
the molar mass is the mass of a given chemical element or chemical compound divided by the amount of substance
Answer: Sr
Explanation: Strontium electron configuration is [Kr] 5s2. It belongs to group 2 and period 5 of the periodic table.
Answer:
The two blocks have the same temperature
Explanation:
Given;
heat capacity of Aluminum = 0.9 J/g
heat capacity of copper = 0.35 J/g
thermal conductivity of copper = 385 W/(K m)
thermal conductivity of Aluminum = 205 W/(K m)
Based on the given data, it can be concluded that;
- Aluminum’s higher heat capacity means it does not get as hot when energy is shared between the two blocks, so the copper will be hotter
- Copper’s higher thermal conductivity will cause the aluminum to heat up compared to the copper
However, the two metallic blocks (aluminum block and a copper block), were allowed to achieve thermodynamic equilibrium, and as a result they will have the same temperature.
Therefore, the correct statement is "The two blocks have the same temperature".