Recent Homework Questions About Substance Abuse
A researchr assistant made 160mg of a radioactive, and found that there was only 20mg left after 45hours. a) What is the half-life of this substance? b) Write a function to represent the amount of substance left after x hours c) If the researcher kew he needed 100mg of the ...
Sunday, June 23, 2013 at 12:30pm
A total charge of 96.5 kC is passed through an electrolytic cell. Determine the quantity of substance produced in each of the following cases. (a) the mass (in grams) of silver metal from a silver nitrate solution (b) the volume (in liters at 273 K and 1.00 atm) of chlorine ...
Friday, June 21, 2013 at 8:59pm
critically discuss 5 ways in which substance abuse can have an impact on human & environmental factor?
Monday, June 17, 2013 at 2:36pm
that strange!! the amount of heat evolved for a particular substance is Q = mc?T where m is the mass of that substance c is the specific heat capacity and ?T is the change in temperature during transition change or reaction. So as the mass increased so the Q as well.
Monday, June 17, 2013 at 12:42am
Ok, so using Le Chatelier's Principle If you add heat to an exothermic reaction, the equilibrium will shift to the left. If you remove heat to an exothermic reaction, the equilibrium will shift to the right. What is it for an ENDOTHERMIC reaction? If you add a substance, ...
Tuesday, June 4, 2013 at 11:56pm
for each pair of substance listed below identify one with lower boiling point
Friday, May 31, 2013 at 9:56am
find the molar enthalpy of vaporization for a substance, given that 3.21 mol of the substance absolve 28.4 kj of energy as heat when the substance changes from liquid to gas? show the work
Thursday, May 30, 2013 at 9:38pm
BaSO4(s)__><--- Ba2+(aq) + SO42−(aq) Adding what substance produces more SO4^2-??? This was a question, that had options of 1. SO4^2- 2. Ba2+ 3. BaSO4(s) 4. and i think a compound with NH in it Thank you
Wednesday, May 29, 2013 at 11:03pm
A substance is heated from 12.0oF to 150.0oF. What is its change in temperature on (a) the Celsius scales,(b) the Kelvin scales
Tuesday, May 28, 2013 at 6:25am
Please be more careful with your spelling. A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is: a Direct Combination or Synthesis Reaction
Monday, May 27, 2013 at 6:28pm
Human or environmental problem under substance abuse. The impacts
Sunday, May 26, 2013 at 2:23pm
provide recommendations on how to address substance abuse
Tuesday, May 21, 2013 at 12:27pm
TEACHER AIDE,CHILDREN, FAMILIES, SOCIETE
1. Larry is a very aggressive four-year-old child. He watches many television programs that contain violence. Its most likely that A. he will become overactive. C. his behavior wont change. B. he will become depressed. D. his behavior will become more aggressive. 2...
Saturday, May 18, 2013 at 5:00pm
in 10-15 lines critically discuss 5 ways in which substance abuse impacts on the community.
Tuesday, May 14, 2013 at 9:55am
Monday, May 13, 2013 at 9:24am
THE AGE OF DISCOVERY TO THE AMERICAN EXPERIMENT
How does gender aeffct your memory?Which hand sanitizer works the best? (use petri dishes)How does age aeffct your sense of smell?How does age aeffct your memory?How does color aeffct your reaction time?Which posture works best when singing?Which paper towel brand is the ...
Tuesday, October 2, 2012 at 10:40am
Grade 12 life orientation
hey every one please guys help me out ,gimme2 community organizations that are involved in supporting or giving redress to the communite about substance abuse
Thursday, April 19, 2012 at 2:40pm
SECOND the illigal drugs causes the gang violence because it identifies tha a number of factors that put youth at risk of gang involvement is poverty, school failure, substance abuse, family dysfunction, and domestic and societal violence. Illegal drugs are very harmful ...
Tuesday, March 23, 2010 at 12:23pm