Help me plz ty:} What is the number of atoms in the reactants?
What is the number of atoms in the product?

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 rules of engagement (roe) working group is often used to (select all that apply.)

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.