1.0 g of H_{2}O_{2} solution (30 wt%) was titrated with 29.29 mL of KMnO_{4} solution. What is the molarity of the KMnO_{4} solution

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Helium decays to form lithium. which equation correctly describes this decay?

Which of the following statements best explains why chemistry is testable a) it can measure data by experiments b) it cannot add new evidence c) it cannot be verified d) it is biased