A rock sample from an area in southern Canada contained the mineral muscovite with a ratio of potassium 40 to argon 40 proportional to 0.058 of a half-life. What is the age of the specimen? (Use scientific notation to simplify the problem.)

Type the letter that represents the correct location for each particle type below.

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

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