C
a mountain range will form
H2SO.Mgslfurmobile phase in this experiment
Answer:
Yes it is B,D.
Explanation:
Each box represents an element and contains its atomic number, symbol, average atomic mass, and (sometimes) name. The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups.
The reaction is actually endothermic because delta H is positive, indicating that it absorbing heat.
