Wednesday
October 1, 2014

Posts by Zacky


Total # Posts: 14

Medicine
U dumb one it's a question for people that can answer it!!!! You illiterate fool can't even read. Lol
June 28, 2010

Medicine
Why do you want to become a doctor? Please answer thank you!!!
June 28, 2010

chemistry
Using data in table below and S °(CaSO4·H2O(s))= 194.0 J·mol-1·K-1, calculate Delta fS° for CaSO4·H2O(s) in J·mol-1·K-1. CompoundS °, J·mol-1·K-1 C(s) 5.69 H2(g) 130.6 N2(g) 191.5 O2(g) 205.0 Na(s) 51.0 Cl2(g...
May 13, 2010

chemistry
A 0.010 M solution of a weak monoprotic acid has a pH of 3.70. What is the acid-ionization constant, Ka, for this acid? a. 2.0 ´ 10-4 b. 2.0 ´ 10-5 c. 4.0 ´ 10-6 d. 4.0 ´ 10-7 e. 4.0 ´ 10-8
May 13, 2010

chemistry
Which one of the following mixtures is suitable for making buffers? 1 H3PO4 and NaH2PO4 2 Na2CO3 and NaHCO3 3 NH4Cl and NH3 a. 1 only b. 2 only c. 3 only d. 1 and 2 only e. 1, 2, and 3
May 13, 2010

Chemistry
(1) Why are fractional coefficients permitted in a balanced thermochemical equation? In thermochemical reactions, only small amounts of matter are considered. If fractional coefficients were not used, the scale of the reaction would be excessively large. Fractional ...
May 12, 2010

chemistry
Which compound has the most ionic bond? a. KCl b. LiCl c. KF d. NaCl e. LiF
April 23, 2010

Chemistry
Rank Na, Mg and K in order of increasing 2nd ionization energy a. Na < K < Mg b. Mg < K < Na c. K < Na < Mg d. K < Mg < Na e. Mg < Na < K
April 23, 2010

Chemistry
The Solvay process for the manufacture of sodium carbonate begins by passing ammonia and carbon dioxide through a solution of sodium chloride to make sodium bicarbonate and ammonium chloride. The equation for this reaction is H2O + NaCl + NH3 + CO2 ¨ NH4Cl + NaHCO3...
April 2, 2010

Chemistry
choose the one with the ions present cause Cu+2+2OH- and so on it gives you CuO(s) and H2O(L)
March 23, 2010

chemistry
The answer is H2SO3 since it is formed from SO2 reacting with H2O
March 23, 2010

chemistry
Which of the following is a weak electrolyte in aqueous solution? a. H2SO3 b. HNO3 c. HBr d. HClO4 e. NaOH
March 23, 2010

chemistry
Which of the following is a weak electrolyte in aqueous solution? a. acetic acid b. lithium acetate c. ammonium carbonate d. sulfuric acid e. calcium hydroxide
March 23, 2010

math
coleen hid a coin equivalent to a fraction of a dollar behind her back. She said the fraction is smaller than 1/2 and greater than 1/20. What is two possible coin could she have hidden. How do you know? Then she sid it was five time greater than 1/20. Shat coin did she have.
March 2, 2009

Pages: 1

Search
Members