Which one of the following is used as a radiotracer to study ...

[bio_gurl]

Which one of the following is used as a radiotracer to study blood?
 
  A) iron-59
  B) technetium-99
  C) sodium-23
  D) iodine-131
  E) phosphorus-32

Question 2

Given the equation: C2H6 (g) + O2 (g)  CO2 (g) + H2O (g) (not balanced) Determine the number of liters of O2 consumed at STP when 60.0 grams of C2H6 is burned.
 
  What will be an ideal response?

Question 3

What is the term for a clear lens at the surface of the liquid inside a narrow piece of glassware
  such as a graduated cylinder?
 
  A) crescent
  B) meniscus
  C) monocle
  D) parallax
  E) none of the above

[milbourne11]

Answer to Question 1

A

Answer to Question 2

157

Answer to Question 3

B)

[bio_gurl]

Thanks for the timely response, appreciate it

[marict]

Excellent