Question and answer
Cold packs are designed to become very cold when activated. When the pack is activated, a chemical reaction occurs to make the temperature of the cold pack decrease. What must be true of this
chemical reaction? (2 points) A) The reaction releases energy to its surroundings. B) The products and reactants have the same amount of energy. C) The products have less energy than the reactants. D) The reaction absorbs energy from its surroundings.
C. released or absorbed.
Expert answered|iamhanifah|Points 300|
Question|Rated good
Asked 6/21/2011 7:25:45 AM
0 Answers/Comments
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
cube has a side of 5 cm. It has a mass of 250 grams. The density of the cube is ____________________ A) 2.0 g/cm3 and will float in water B) 2.0 g/cm3 and will sink in water C) 50 g/cm3 and will float in water D) 50 g/cm3 and will sink in water
Weegy: 50g/cm3 User: will it flow in the water or sink in the water Weegy: I dont know, im not sure i think it will flow (More)
Question
All Categories|No Subcategories|
Updated 6/14/2011 2:48:59 PM
1 Answer/Comment
density =mass/volume, so density is B) 2.0 g/cm3 and as it's more dense than water it will will sink in water
Added 6/14/2011 2:48:59 PM
Mass is defined as the amount of matter an object has. A) True B) False
Weegy: Mass is defined as the amount of matter an object has. It is true. (More)
Question
All Categories|No Subcategories|Expert Answered
Updated 121 days ago|3/23/2014 10:39:11 AM
1 Answer/Comment
a
Added 6/14/2011 7:16:18 AM
Mass is a measure of how much inertia an object shows. A) True B) False
Weegy: i think false (not sure) (More)
Question
All Categories|No Subcategories|
Updated 6/14/2011 2:41:01 PM
1 Answer/Comment
It's true
Added 6/14/2011 2:41:01 PM
16,916,653 questions answered
Popular Conversations
Ad Hominem
Weegy: A) ad hominem arguments
7/22/2014 10:50:04 PM| 2 Answers
Nearly all standing committees have several
7/22/2014 1:25:29 AM| 1 Answers
what is Marginal analysis
Weegy: Marginal analysis is the process of identifying the benefits and costs of different alternatives by examining ...
7/22/2014 1:25:47 AM| 1 Answers
Weegy Stuff
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
Points 1754 [Total 20754]| Ratings 1| Comments 1744| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
Points 1712 [Total 16841]| Ratings 0| Comments 1712| Invitations 0|Offline
S
L
P
C
L
P
C
P
C
L
P
C
P
C
Points 1396 [Total 13951]| Ratings 1| Comments 1386| Invitations 0|Offline
S
L
1
Points 1326 [Total 3510]| Ratings 2| Comments 1306| Invitations 0|Offline
S
L
1
1
1
1
L
1
Points 1021 [Total 7198]| Ratings 2| Comments 1001| Invitations 0|Offline
S
1
L
Points 868 [Total 3004]| Ratings 4| Comments 828| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 800 [Total 10408]| Ratings 0| Comments 800| Invitations 0|Offline
S
1
L
Points 708 [Total 4384]| Ratings 2| Comments 688| Invitations 0|Offline
S
P
C
L
P
L
1
Points 685 [Total 5739]| Ratings 4| Comments 645| Invitations 0|Online
S
Points 247 [Total 395]| Ratings 2| Comments 227| Invitations 0|Offline
Home | Contact | Archive | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.