Which statement is true about a catalyst? A. it decreases the rate of a reaction
B. it remains unused during the reaction
C. it reduces the collisions between reactants
D. it changes the final product of the reaction​

Ithink it’s a forms a perfect sphere or a smooth flattened oval

C. definite shape, definite volume. that is a solid.

Aseasonal prevailing wind in the region of south and southeast asia, blowing from the southwest between may and september and bringing rain (the wet monsoon ), or from the northeast between october and april (the dry monsoon ).

Ijust took the quiz. their is no coefficient needed. : )