C
The elements are Lithium and Beryllium— just look at the mass number on the periodic table
I think the correct answers from the choices listed above are the first, third and the last option. Ionic compounds are compounds that dissociates into ions when in aqueous solution. From the list, NH4Cl, KF and MgO are the ionic compounds. Hope this answers the question.
The surrounding ecosystem in and around the water
Answer:
t? im pretty sure have a good day
B. climate
this is because it influences the speed of chemical reactions in the soil