Explain, in terms of particles, why the rate decreases during the reaction between magnesium and hydrochloric acid.

There are 2 ideas that need to be included here :The concentration of acid decreases over time So collisions are less frequentAs the reaction proceeds more and more molecules would have collided successfully. This means that there are less reactants left in the system, so the successful collisions happen less frequently. Since the rate of the reaction depends on the frequency of collisions, we expect the rate to decrease in time.

SM
Answered by Stefan-Andrei M. Chemistry tutor

10052 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Draw the atomic structure of Magnesium


How does bonding effect the melting point of a substance?


What is the empirical formula of a compound with the following composition by mass, 48.0g C, 4.0g H and 48.0g O?


Describe the difference between a covalent bond and an ionic bond.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning