(07.05 MC) The table shows the concentration of a reactant in the reaction mixture over a period of time.
Reactant Concentration
Time
Concentration
1.8 M
Os
2105
1.2 M
450 S
0.8 M
580 S
0.6 M
720 S
0.4 M
What is the average rate of the reaction over the first 450 seconds? (3 points)
Select one:
a.1.7 x 10-3
b.1.9 x 103
c.2.0 x 109 x
d.2.2 x 10-3

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.