Im not 100% sure, but I think the answer is C. If not, Im sorry for bothering you.
1kg of water has greater internal energy compared to 1g of water because 1kg of water has more mass.
The answer is that the mold melting point must be higher then molten glass, otherwise the mold would melt when molten glass is poured into it .
I hope this helps :)
Answer:
78
Explanation:
atomic number is number of protons
