What happens to the reaction rate as the reactants get used up in a reaction? O

A. The rate of the reaction is not affected by the concentration of

reactants.

B. The rate of the reaction increases steadily as products are formed.

O

O

O

C. The rate of the reaction begins to decrease as reactants are used

up

O

D. The rate of the reaction stays constant until the reactants are

gone.

I'm pretty sure the awnser is C.

C.  The rate of the reaction begins to decrease as the reactants are used.

Explanation:

a p 3 x

the atomic mass is the bottom number on the element.

-steel jelly

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.