How many valence electrons are in fluorine?

6. In the continental US rainwater that falls west of the Great Continental Divide will eventually end up flowing to which ocean?

Q: what are the mass number and charge of an electron, respectively?

Arrange those element according to electronegative most to least electronegative. O, C, Ga, K, Cs

You are given the percent by mass of the elements in a compound and wish to determine the empirical formula. Label each of the following statements as true or false and explain your answers. a. You must assume exactly 100.0 g of the compound. b.

Which of the following best describes the particles in a liquid? A. far apart and easily compressible B. far apart and almost incompressible C. close together and easily compressible D. close together and almost incompressible

What is the pH of a 3.40 mM of acetic acid, 500 mL in which 50 mL of 1.00 M NaOAc has been added? Ka HOAc is 1.8 x 10-5? What percentage of the acid is dissociated?

Round 100.1 C to 1 significant figure

What happens when two oceanic plates meet

What role does chlorophyll play in photosynthesis?

A substance spontaneously explodes when exposed to other substances. is this a chemical or physical reaction