Question and answer
Question not found
Ask a question
Not a good answer? Get an answer now. (Free)
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
What must be true for any endothermic reaction? The chemical bonds of the products have more energy than the chemical bonds of the reactants. There are more products than there are reactants. There must be a phase change from solid to liquid or from liquid to gas. The reaction must take place in a sealed container held at constant volume.
Weegy: Endothermic describes a process or reaction in which the system absorbs energy from the surroundings in the form of heat. Exothermic is the release of energy in heat form. User: A student notices that a reaction takes place faster when the temperature is higher. Which best explains why this happens? At higher temperatures, the molecules collide more frequently. The heat of the solution breaks apart chemical bonds. As the particles move more quickly, they can more easily avoid each other. Catalysts cannot be effective at high temperatures. Weegy: A User: A chemist finds that when platinum is added to a reaction, the reaction speeds up. He thinks the platinum may be acting as a catalyst. What measurement should the chemist make to determine whether it is a catalyst? Measure the mass of the platinum before and after the reaction. Measure the temperature of the solution before and after the reaction. Measure the change in volume of the solution. Measure the amount of gas released by the reaction. Weegy: Measure the mass of the platinum before and after the reaction. Catalysts themselves do not undergo any changes so the mass should be the same. (More)
Question
Expert Answered
Asked 5/20/2012 11:06:18 AM
0 Answers/Comments
21,993,162 questions answered
Weegy Stuff
S
L
L
P
1
Points 102 [Total 9412]| Ratings 1| Comments 92| Invitations 0|Offline
S
1
L
L
P
R
Points 80 [Total 9403]| Ratings 0| Comments 80| Invitations 0|Offline
S
Points 69 [Total 374]| Ratings 0| Comments 69| Invitations 0|Offline
S
Points 49 [Total 833]| Ratings 0| Comments 49| Invitations 0|Offline
S
Points 15 [Total 203]| Ratings 0| Comments 15| Invitations 0|Offline
S
Points 11 [Total 16]| Ratings 1| Comments 1| Invitations 0|Offline
S
Points 9 [Total 233]| Ratings 0| Comments 9| Invitations 0|Offline
S
Points 6 [Total 289]| Ratings 0| Comments 6| Invitations 0|Offline
S
Points 4 [Total 60]| Ratings 0| Comments 4| Invitations 0|Offline
S
Points 2 [Total 12]| Ratings 0| Comments 2| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.