Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions:
Mg+2, Cr+4, I−, S−2

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Fossil fuels are organic compounds that are made from

Which activity describes an application of topographic maps? check all that apply. recreation, such as camping and hiking engineering, such as the construction of roads and buildings science, such as mapping stars in the sky business, such as analyzing population centers science, such as analyzing surface features