What happens to the individual molecules of a liquid as they gain enough kinetic energy to escape the surface of the liquid?

A. They condense

B. They boil.

C. They evaporate

D. They freeze

Which of the following best explains the law of superposition? A) In rock layers, the oldest layers are at the bottom and the youngest are at the top B) In rock layers, the youngest layers are at the bottom and the oldest are at the top C) Due to

What two elements do not need eight valence electrons to stay stable?

A formula that shows how many atoms of each element a substance contains is called a (n) _ O A. ionic formula O B. molecular formula O C. structural formula O D. empirical formula

When comparing the colors of the following four compounds, which is most likely to appear green? [Co (CN) 6]3 - [Co (H2O) 6]3 + [Co (en) 3]3 + [CoI6]3 - and why?

You have a solution of 0.0020 M HCl. What is the pOH of the solution?

The Hope diamond has a mass of 44.0 carats and a density of 3.51 g/cm3. What is the volume of the Hope diamond? (Hint: 1 carat = 0.200 g) A. 2.5 g/cm3 B. 2.5 g C. 2.5 cm3 D. 2.5 carats

Which pair of elements form an ionic bond with each other? 1) KCI 2) ICI 3) PCI 4) HCI

What is the chemical ratio of h2o

How many significant figures are in the following? a) 0.1111 b) 2000 c) 35.6 d) 180,701

What is the change of the oxidation number arsenic in the following reaction