A chemist determined by measurements that 0.010 moles of hydrogen bromide participate in a chemical reaction. Calculate the mass of h participates.

yes it is balanced

i think   the answer is c hope i'm right

a) the particles of the chair are strongly held together.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )