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In a study of the reaction of magnesium with hydrochloric acid, two experiments were carried out.
Each uses 1 g of magnesium ribbon, and 50 mL of hydrochloric acid was added to each reaction flask.
One of the hydrochloric acid solutions added was more concentrated than the other one.

****This is because there are more _?_ available to collide with the _?__

How did you derive your answers?? .


    acid ions, magnesium

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