Friday
April 18, 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

Medicine
Why do you want to become a doctor? Please answer thank you!!!

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)...

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

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

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 coefficient...

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

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

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....

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

chemistry
The answer is H2SO3 since it is formed from SO2 reacting with H2O

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

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

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.

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