Question and answer
explain why the mass of a rusted nail would be greater than the mass of the nail before it rusted?
Rust is iron oxide, a molecule consisting of iron and oxygen. The mass of the iron in the rust molecules comes from the original nail, but the mass of the oxygen has come from the air. [ When rust forms on iron, the mass of the iron object is increased by the mass of the oxygen that has combined with some of the iron. ]
Expert answered|lamont|Points 86|
Question
Asked 5/9/2010 5:09:43 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
How might you cause an endothermic chemical change to begin and keep going?
Question
Updated 10/4/2011 9:11:10 PM
2 Answers/Comments
hahaha
Added 10/4/2011 9:11:09 PM
A plastic box is 15.3 cm long, 9.0 cm wide, and 4.5 cm high. What is its volume? Includ units in your answer.
Question
Not Answered
Updated 5/9/2010 7:55:52 PM
1 Answer/Comment
Volume = L*W*H
So V= 15.3*9*4.5 = 619.65
Added 5/9/2010 7:55:52 PM
How can you determaane wether a solid object is dense or less dense than water?
Question
Not Answered
Updated 5/10/2010 12:34:25 AM
1 Answer/Comment
For a homogeneous object, the mass divided by the volume gives the density. The mass is normally measured with an appropriate scale or balance; the volume may be measured directly (from the geometry of the object) or by the displacement of a fluid. Hydrostatic weighing is a method that combines these two.

If the body is not homogeneous, then the density is a function of the position: , where dv is an elementary volume at position . The mass of the body then can be expressed as


The density of a solid material can be ambiguous, depending on exactly how its volume is defined, and this may cause confusion in measurement. A common example is sand: if it is gently poured into a container, the density will be low; if the same sand is compacted into the same container, it will occupy less volume and consequently exhibit a greater density. This is because sand, like all powders and granular solids, contains a lot of air space in between individual grains. The density of the material including the air spaces is the bulk density, which differs significantly from the density of an individual grain of sand with no air included


Added 5/10/2010 12:34:25 AM
propose a way to determaine the densilty of air?
Question
Not Answered
Updated 5/9/2010 9:05:15 PM
1 Answer/Comment
Added 5/9/2010 9:05:15 PM
0 questions answered
Popular Conversations
Locate the verbal in the following sentence and identify its ...
Weegy: Check the turkey to see if it is done. Infinitive: To see; Use: Adverb. User: Locate the infinitive and ...
9/3/2015 4:37:24 PM| 4 Answers
A solution should be _____ in order to prevent water gain or water ...
Weegy: If an animal cell shrinks, it was probably placed in a hypertonic solution. User: The fourth level of cell ...
9/3/2015 8:31:00 AM| 3 Answers
Fishing is the leading industry in ...
9/3/2015 9:21:23 AM| 2 Answers
As a sales person for Tan's Bakery, Yolanda is paid a straight ...
Weegy: Yolanda's total gross pay is $12,741.3. It is where 5.3% of $12,100 is $641.3, then add it to $12,100, resulting ...
9/3/2015 11:43:02 AM| 2 Answers
4x3 – 3x2 + x + 3x3
Weegy: x=4
9/3/2015 12:54:05 PM| 2 Answers
A person suffering from schizophrenia loses contact with reality.
Weegy: What is your question?
9/3/2015 2:13:49 PM| 2 Answers
Locate the complete adjective phrase and the noun modified. I heard ...
Weegy: Please indicate the sentence so I can give you the answer. Thanks! User: Locate the complete adjective phrase ...
9/3/2015 4:46:53 PM| 2 Answers
In a short story, any pronoun that indicates a person or thing spoken ...
Weegy: In a short story, any pronoun that indicates a person or thing spoken of is given in the third person. ] ...
9/3/2015 6:14:06 PM| 2 Answers
Weegy Stuff
S
1
L
L
P
R
Points 149 [Total 9472]| Ratings 0| Comments 149| Invitations 0|Offline
S
L
L
P
1
Points 122 [Total 9432]| Ratings 1| Comments 112| Invitations 0|Offline
S
Points 81 [Total 386]| Ratings 0| Comments 81| Invitations 0|Offline
S
Points 49 [Total 833]| Ratings 0| Comments 49| Invitations 0|Offline
S
Points 39 [Total 572]| Ratings 0| Comments 39| Invitations 0|Offline
S
Points 32 [Total 32]| Ratings 1| Comments 12| Invitations 1|Offline
S
Points 24 [Total 29]| Ratings 1| Comments 4| Invitations 1|Offline
S
Points 20 [Total 208]| Ratings 0| Comments 20| Invitations 0|Offline
S
Points 11 [Total 67]| Ratings 0| Comments 11| Invitations 0|Offline
S
Points 10 [Total 10]| Ratings 0| Comments 0| Invitations 1|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.