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
23,926,719 questions answered
Popular Conversations
Which was not characteristic beat movement? beatniks Jack ...
Weegy: Individuality was not a characteristic of beat movement. User: Who labeled the idealistic youth of the ...
2/10/2016 5:37:37 AM| 2 Answers
For which of the following would not expect to pay an excise ...
Weegy: For firearms, a person is not expected to pay an excise tax. The answer is B. User: Which of the following is ...
2/10/2016 7:44:54 AM| 2 Answers
Which value is equivalent to 4.5% written as a decimal?
Weegy: .10
2/10/2016 8:59:01 AM| 2 Answers
also called the “Big Stick Policy”
2/10/2016 9:12:06 AM| 2 Answers
What is the reciprocal of 6/5? A. 1 B. 5/6 C. 1 1/5 D. 12/10
Weegy: What is the reciprocal of 6/5? 1
2/10/2016 9:24:14 AM| 2 Answers
Weegy Stuff
S
Points 311 [Total 708] Ratings 0 Comments 311 Invitations 0 Offline
S
P
P
L
Points 235 [Total 1042] Ratings 0 Comments 235 Invitations 0 Offline
S
1
L
L
P
R
P
L
P
Points 121 [Total 11294] Ratings 0 Comments 121 Invitations 0 Online
S
L
P
Points 46 [Total 2114] Ratings 0 Comments 46 Invitations 0 Offline
S
Points 33 [Total 317] Ratings 0 Comments 33 Invitations 0 Online
S
Points 10 [Total 21] Ratings 1 Comments 0 Invitations 0 Offline
S
Points 4 [Total 904] Ratings 0 Comments 4 Invitations 0 Offline
S
Points 2 [Total 5] Ratings 0 Comments 2 Invitations 0 Offline
S
Points 2 [Total 2] Ratings 0 Comments 2 Invitations 0 Offline
S
Points 1 [Total 2] Ratings 0 Comments 1 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)