Ii. Label the state symbols of each compound in the reaction. (1 point) MgCl2( ) + Pb(NO3)2( ) +Mg(NO3)2( ) + PbCl2()

iii. Write the complete ionic equation from the balanced equation. (1 point)

I

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

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.

What is the percentage of hydrogen in nitrogen trihydride