Question and answer
Two examples in everyday life where concentration is used to change the rate of reactions
Factors that affect the rate of a chemical reaction The rate of a reaction measures how fast it happens. [ When a reaction rate increases, reactants are used up faster and products are formed more quickly. We change the rates of reactions in everyday life every day, dissolving fruit drink powders in hot water before adding cold, or breaking up a headache pill before adding water, or
cutting up vegetables, or rubbing laundry detergent on a stain before washing it. The principles are the same when altering the rates of laboratory reactions: fine powders react more quickly than a few large lumps; concentrated solutions react more quickly than dilute ones; and heating a mixture speeds up the reaction. Another factor, less obvious in everyday life, is the action of catalysts. A catalyst is a substance that speeds up a reaction without being used up by it. In many cases the rate of the uncatalysed reaction is so slow that the compounds do not appear to react at all, but when a small amount of the catalyst is added the reaction is quite vigorous. Almost all industrial chemical reactions use catalysts. Most of the chemical reactions which occur in your body are controlled by biological catalysts called enzymes. Modern cars can be fitted with “catalytic converters” which convert pollutant exhaust gases into carbon dioxide, water, nitrogen and oxygen. .......... ]
Expert answered|sujaysen|Points 2028|
Question
Asked 5/24/2012 3:40:57 PM
0 Answers/Comments
Get an answer
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
Identify the legislation that relates to the recording, storage and sharing of informaation in health and social care
Weegy: in storing and sharing health information. [ I believe this legislation would be called... HIPPA - Health Information Protection and Portability Act. You receive confidentiality statements in the mail from your bank about protecting your confidential info. You go to the hospital or doctor's office and they have a list of patients rights that protect your information. For someone to have access to your confidentila medical information, you have to sign a release of confidential medical information... these all fall under HIPPA laws. ] (More)
Question
Expert Answered
Asked 5/23/2012 8:57:43 AM
0 Answers/Comments
Please explain the theme of the short story,"mutsuku"
Weegy: (More)
Question
Expert Answered
Asked 5/23/2012 10:50:05 AM
0 Answers/Comments
18,763,584 questions answered
Popular Conversations
The product of the roots of 5 - 2m - 3m2 = 0 is:
Weegy: -5/3 User: The product of the roots of 8x² - 2x = 1 is: Weegy: 8x^2 - 2x = 1; 8x^2 - 2x - 1= 0; (4x + ...
12/16/2014 12:27:26 PM| 4 Answers
Factor 100 into a product of prime factors.
Weegy: In number theory, the prime factors of a positive integer are the prime numbers that divide that integer ...
12/16/2014 1:19:37 PM| 4 Answers
Find the distance between the points given. (-3, -4) and (0, 0)
Weegy: Using (8, 1) and (8, -4), the slope of this line is C. slope is undefined. User: Find the distance between ...
12/16/2014 3:47:50 AM| 3 Answers
the solution set of y
Weegy: (x - y + 1) - (x + y - 1) = x - y + 1 - x - y + 1; = -2y + 2 User: Which of the following equations has only ...
12/16/2014 6:09:10 AM| 3 Answers
whats the corresponding transformation of the parent function y = - ...
Weegy: 3-3 = 0 User: The line of symmetry for the quadratic equation y = ax 2 - 8x - 3 is x = 2. What is the value of ...
12/16/2014 6:20:22 AM| 3 Answers
All of the following expressions simplify to -4, except _____. -1 ...
Weegy: Using points (-3,0) and (2,7) determine the slope of the line. Your answer is slope = 7/5. User: Put the ...
12/16/2014 9:53:03 AM| 3 Answers
The values of a, b, and c in the equation x² + 6x - 55 = 0 are:
Weegy: B.slope = -6/5 User: The sum of the roots of x² + 6x - 55 = 0 is: Weegy: The product of the roots of x? + ...
12/16/2014 12:29:35 PM| 3 Answers
In some African American communities, unemployment was as high as ...
Weegy: In some African American communities, unemployment was as high as 50 percent. User: Areas of all of the ...
12/16/2014 8:18:25 AM| 2 Answers
If a circle has a diameter whose endpoints are (-5, 8) and (5, -8), ...
Weegy: true User: The distance formula can be derived from the Pythagorean theorem. True False Weegy: The ...
12/16/2014 9:02:13 AM| 2 Answers
When expressed as a decimal number, which of the following is a ...
Weegy: the repeating digit is the one who is not a divisible of the number User: A function has the rule y = -2x + ...
12/16/2014 9:43:29 AM| 2 Answers
8x 6 y 5 - 3x 8 y 3
Weegy: 8x - 20 = 3x + 5; 8x - 3x = 5 + 20; 5x = 25; x = 25/5; x = 5 User: Find the GCF of -10c 2 d and 15cd ...
12/16/2014 10:01:59 AM| 2 Answers
Weegy Stuff
S
L
P
Points 945 [Total 4789]| Ratings 0| Comments 945| Invitations 0|Offline
S
Points 587 [Total 587]| Ratings 1| Comments 577| Invitations 0|Offline
S
1
L
1
L
P
P
L
P
Points 581 [Total 14766]| Ratings 0| Comments 581| Invitations 0|Offline
S
L
Points 562 [Total 1253]| Ratings 1| Comments 552| Invitations 0|Offline
S
P
C
L
P
L
1
Points 82 [Total 6401]| Ratings 1| Comments 72| Invitations 0|Offline
S
L
Points 64 [Total 1524]| Ratings 1| Comments 54| Invitations 0|Offline
S
1
L
L
Points 33 [Total 6700]| Ratings 0| Comments 33| Invitations 0|Offline
S
Points 23 [Total 29]| Ratings 0| Comments 23| Invitations 0|Offline
S
Points 22 [Total 22]| Ratings 0| Comments 2| Invitations 2|Offline
S
Points 21 [Total 21]| Ratings 0| Comments 21| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.