How do I calculate the reaction rate and plot a graph for it?

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock