What happens to the rate of a reaction as the reaction
progresses?
O A. The rate stays constant throughout the reaction.
O B. The rate increases as products are formed.
O C. The rate is constant until it suddenly drops to zero.
O D. The rate decreases as reactants are used up.

hi,

the capital city of australia is canberra.

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.