What is the ph of 0.20 m nitrous acid at equilibrium (ka=4.6 x 10 -4)

Which of these conditions most likely produces an unstable isotope?

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

Convert .347 kilometers to miles show your work