Author: Anonymous

What is the niche called in which an organism is the most successful?

Comparing two solutions with a pH of 4 and 6, by what factor does the solution with pH 4 have more hydrogen ions than solution with pH 6? 

Atomic number is the number of ____________________ in an atom.

Examine the graph below and determine the dependent variable.

Water bonds to other materials through a property called ______________.

Comparing two solutions with a pH of 4 and 6, which solution has more hydrogen ions?

Write the correct dissolving equation for Ag2CO3 (s) on scratch paper, and then answer the following question. Will a ppt of Ag2CO3 (s) form if you mix 8.4 x 10-4 M Ag+ (aq) with 3.3 x 10-5 M CO3 -2 (aq)?  Which of the following is entirely correct? a.  Q= 5.5 x 10-8, ppt forms b.  Q= 2.3 x 10-11, no ppt c.  Q= 2.3 x 10-11, ppt forms d.  Q = 2.7 x 10-8, ppt forms e. Q = 2.7 x 10-8, no ppt Tables.pdf Periodic Table with New Elements.pdf

What is the correct name of NO2- ?- a. nitride b. nitrate c. nitrogen trioxate d. nitrite e. nitrogenoxite   Tables.pdf Periodic Table with New Elements.pdf

What is the % ionization of 1.17 M NH3 (aq) from the previous problem?   a. 0.00392 % b. 0.536 % c. 0.392 % d. 0.00246 % e. 0.00180 % Tables.pdf Periodic Table with New Elements.pdf

According to the solubility rules, which of the following compound(s) is (are) soluble in water? 1. CdCO3       2. (NH4)2CO3        3. NiCl2        4. Pb3(PO4)2     5. Cu(NO3)2   a. 5 only b. 2, 3, and 5 only c. 3 and 5 only d. 1 and 4 only e. 2 and 3 only Tables.pdf Periodic Table with New Elements.pdf