What is the pH of a 0.5 M solution of a hydrocyanic acid, when KA is 6.2 X 10^-10?

14 days is the half-life of phosphorus-32

i think it is true since you can test the answer and can use observations to complete it.

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

is there any options? maybe im just not seeing them but i need the options to

-love shrooms