Thinking Critically. What steps would need to be added to this lab to accurately determine the stoichiometric ratio of Mg to HCl at each step in this lab?

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

In a chemical reaction at equilibrium, the rate of the forward reaction the rate of the reverse reaction. if the rate of the forward reaction more products are formed.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: