Which of the following is a pH of a weak base?

a) 1

b) 20

c) 8

d) 13

e) 5.6

What is the primary cause of global wind patterns on earth?

1. (Blank) are the basic units of structure and function in living things. 2. A (Blank) is a group of similar cells that perform a specific function in an organism. 3. (Blank) are nerve cells that carry response information to muscles and organs. 4.

Given the data in the table, what is the average atomic mass of chlorine?

Which phase lasts longer, a full moon or a new moon? Select one: a. Full moon b. New moon C. They both last for the same number of days.

Be sure to answer all parts. As an EPA scientist studying catalytic converters and urban smog, you want to find Kc for the following reaction: 2 NO2 (g) ⇌ N2 (g) + 2 O2 (g) Kc = ?

A type of element that has some of the properties of metals and some of nonmetals is called a

DDT is: A. banned in the United States B. still being used in other countries C. to blame for the near extinction of some bird species D. all of the above

7) Sodium is much more apt to exist as a cation than chlorine because: a) chlorine is a gas and sodium is a solid b) chlorine has a greater electron affinity than sodium c) chlorine is bigger than sodium d) chlorine has a greater ionization energy

What's the oxidation number of cu (no3) 2

If a substance goes from the gas phase to the liquid phase, was it heated or cooled