Levels Tought:
Elementary,Middle School,High School,College,University,PHD
Teaching Since: | Apr 2017 |
Last Sign in: | 235 Weeks Ago |
Questions Answered: | 12843 |
Tutorials Posted: | 12834 |
MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
7) 6 CO2 + 6 H2O + Energy → C6H12O6 + 6 O2 Â
In this photosynthesis that occurs in plants, is ΔH positive or negative?
a.positive
b.negative
38) Consider the reaction H2 (g) + Br2 (l) → 2 HBr (g).
39) Is the entropy, â–³S, positive or negative for the following process?
Assembling a jigsaw puzzle.
40)Does the entropy (â–³S) increase or decrease in each of the following processes?
41)What is the molarity of a solution in which 175 grams of KCl are dissolved in 1.00 LÂ of solution?
44)Calculate the freezing point of a solution made from 94.0 grams of sucrose, C12H22O11, dissolved in 300 grams of ethanol.
45) Calculate the boiling point of a 2.00 molal solution of magnesium perchlorate, Mg(ClO4)2, in water.
-----------