tegaa8y4uEricia tegaa8y4uEricia

07-03-2016
Physics

contestada

What type of substance is a catalyst?
A. always a gas
B. always a liquid
C. always a powder
D. A catalyst can be in many forms.

Respuesta :

emilyroslyn emilyroslyn

07-03-2016

A catalyst is any substance that increases reaction rate without being consumed, so D is your answer.

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