Answer: 693 years
Step-by-step explanation:
Expression for rate law for first order kinetics is given by:
k = rate constant
t = time taken for decomposition = 1
= Initial amount of the reactant
= amount of the reactant left =
for half life : 
Putting in the values , we get
Thus half life of this isotope, to the nearest year is 693.
The answer to this problem is -2/2
Answer:
When heated calcium carbonate forms calcium oxide and carbon dioxide.
The key idea of the transformation called a rotation is the moving of the plane a certain angle around a fixed point.
Y=mx+b helps to find slope of a line.
B is where it starts on the y axis.
m is the slope.
