Chemistry

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One liter of a solution of pH 2 has how many more hydrogen ions (H+) than 1 L of Started by Hawke	2 Replies 977 Views	Jun 11, 2013 by Hawke
One liter of a solution of pH 9 has how many more hydroxyl ions (OH-) than 1 L o Started by Hawke	2 Replies 1,094 Views	Jun 11, 2013 by Hawke
Research indicates that acid precipitation can damage living organisms by A) buf Started by Hawke	2 Replies 1,506 Views	Jun 11, 2013 by Hawke
If a solution has a pH of 7, this means that A) there are no H+ ions in the wate Started by Hawke	2 Replies 831 Views	Jun 11, 2013 by Hawke
Based on your knowledge of the polarity of water molecules, the solute molecule Started by Hawke	2 Replies 6,767 Views	Jun 11, 2013 by Hawke
You have two beakers. One contains pure water, the other contains pure metha Started by Hawke	2 Replies 1,110 Views	Jun 11, 2013 by Hawke
You have two beakers. One contains a solution of HCl at pH = 1.0. The other cont Started by Hawke	2 Replies 915 Views	Jun 11, 2013 by Hawke
About 25 of the 92 natural elements are known to be essential to life. Which fou Started by Hawke	2 Replies 1,133 Views	Jun 10, 2013 by Hawke
The reactivity of an atom arises from A) the average distance of the outermost e Started by Hawke	2 Replies 1,305 Views	Jun 10, 2013 by Hawke
Which statement is true of all atoms that are anions? A) The atom has more elect Started by Hawke	2 Replies 859 Views	Jun 10, 2013 by Hawke
Which of the following statements correctly describes any chemical reaction that Started by Hawke	2 Replies 908 Views	Jun 10, 2013 by Hawke
We can represent atoms by listing the number of protons, neutrons, and electrons Started by Hawke	2 Replies 1,208 Views	Jun 10, 2013 by Hawke
The atomic number of sulfur is 16. Sulfur combines with hydrogen by covalent bon Started by Hawke	2 Replies 1,140 Views	Jun 10, 2013 by Hawke
What coefficients must be placed in the following blanks so that all atoms are a Started by Hawke	2 Replies 875 Views	Jun 10, 2013 by Hawke
An atom with atomic number 12 would have what type of chemical behavior in bondi Started by Hawke	3 Replies 730 Views	Jun 10, 2013 by Hawke
Which of the groups above is a carboxyl functional group? A) A B) B C) C D) D E) Started by federox	3 Replies 707 Views	Jun 5, 2013 by coco
A chemist wishes to make an organic molecule less acidic. Which of the following Started by federox	2 Replies 699 Views	Jun 5, 2013 by federox
Which molecules shown above will form hydrogen bonds with water? A) Only D will Started by federox	2 Replies 622 Views	Jun 5, 2013 by federox
Which of the groups shown above is a functional group that helps stabilize prot Started by federox	2 Replies 873 Views	Jun 5, 2013 by federox
Which of the groups shown above is a carbonyl functional group? A) A B) B C) C D Started by federox	2 Replies 706 Views	Jun 5, 2013 by federox
Which functional group(s) shown above is (are) present in all amino acids? A) A Started by federox	2 Replies 910 Views	Jun 5, 2013 by federox
Which functional group shown above is characteristic of alcohols? A) A B) B C) C Started by federox	2 Replies 675 Views	Jun 5, 2013 by federox
Which of the structures illustrated above cannot form hydrogen bonds with water Started by federox	2 Replies 579 Views	Jun 5, 2013 by federox
Which of the structures illustrated above contain(s) a carbonyl functional group Started by federox	2 Replies 730 Views	Jun 5, 2013 by federox
Which of the structures illustrated above is an impossible covalently bonded mol Started by federox	2 Replies 744 Views	Jun 5, 2013 by federox