If the total mass of the products of a reaction is
250 g, what was the total mass of the reactants

Which best describes why nh4+ can form an ionic bond with cl-?

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?