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5/35 MCQs for:
MATTER: PROPERTIES AND TRANSFORMATION: Rates Of Reaction

A heterogeneous reaction is one in which the reactants are in __.

The surface area of a solid reactant affects the rate of __.

The rate of a chemical reaction can be monitored by?
__ is the minimum amount of energy that reactant particles must possess before collisions between them will lead to a chemical reaction
0.4g of marble chips was placed in a conical flask standing on top of a balance, 25cm³ of dilute HCl was added onto the marble chips in the flask. A plug of cotton wool was placed at the mouth of the flask.
Factors which would affect the rate of this reaction include __