28) All elements are made of atoms
29)Protons and Neutrons
-Electrons make up the outside of the Nucleus
Answer:
A. He arranged the first periodic table.
Explanation:
Gasoline would be a mixture if I recalled
Yes, and no. We all should know by know we do need the sun to survive, but we also need for energy is oxygen and the food we eat.
Answer:
Heat of fusion
Explanation:
The heat required to change 1 gram of a solid at its normal melting point to a liquid at the same temperature is called the heat of fusion.
The formula for the heat of fusion is given by :

Where
n is no of moles
is molar heat of the substance
Hence, the correct answer is heat of fusion