Is it possible to have a chemical change without a physical change?
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Physical and Chemical Changes. When you have ... between a physical and chemical change in matter ... the substance changed back without ...
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For example.. Here's the picture [ ] @ 900x800 And then here's the new one, edited [ ] @ 400x300 Same size, different pixels.. (Best way I could explain what I'm trying to ask) I have photoshop, but I cannot find a "How To" guide anywhere....
Answer:
It sounds like you resized the image, while reducing the Pixel density. You need to resize it but only...
Taylor at Yahoo! Answers Mark as irrelevant Undo
this is a quiz that i got and my answers: V homogenous mixture - chemical V heterogenous mixture - physical X mixing sugar with water - physical V choking on a piece of meat - physical V healing of a wound - chemical V cutting a piece of paper - physical...
Answer:
for an apple decomposing you might also use the argument that there are bacteria at work that eat and...
nettie : ] at Yahoo! Answers Mark as irrelevant Undo
HELP! I have a lab assignment and i don't know how to distinguish between the two types of changes! I know a new substance is produced when a chemical change occurs and a new substance isn't produced in a physical change but i don't know how to distinguish...
Answer:
Well with a physical change, the change is a result of breaking, boiling, melting, freezing, bending...
Abagahah... at Yahoo! Answers Mark as irrelevant Undo
I have a few HW questions that im too lazy to do myself so plz help here they are!: The steel wool turned the black pot a shiny, silver color Chemical or Physical change? Lightning flashes across the sky Physical or Chemical? The piece of lemon turned...
Answer:
1 Physical, it is the friction that removes the dullness and not the cleanser. 2 Chenical and Physical...
eMoGuRl4... at Yahoo! Answers Mark as irrelevant Undo
CHEMICAL CHANGE CAN'T BE OBSERVED WITHOUT CHANGING THE MATERIAL ITSELF... I ANSWERED FALSE. THE "CHEMICAL" WAS UNDERLINED. AND I PUT PHYSICAL CHANGE. BUT RIGHT NOW I THINK I GOT IT WRONG AND I'M THINKING ITS A CHEMICAL CHANGE. WHICH ONE IS...
Answer:
with a physical change the material stays the same, just the shape or phase changes but with a chemical...
lavie at Yahoo! Answers Mark as irrelevant Undo
I wanna ask 2 questions: 1. is cooling a saturated copper sulphate solution to form crystals a physical change or chemical change 2. is heating lead oxide with carbon to extract lead a chemical change or physical change thats it, plz help me guys, I...
Answer:
Are you changing the substance when you cool copper sulphate solution?? No.. As a solution, copper and...
*Devil-6... at Yahoo! Answers Mark as irrelevant Undo
I need to determine which is a chemical change & which is a physical change: tanning of your skin by the sun (I said physical) sap dripping from a pine tree (I said physical) recovery of turpentine from pine sap (I said chemical) mixing turpentine...
Answer:
Here's the key. If it's a chemical change, a new substance that was not there before is produced. Mixing...
Angela at Yahoo! Answers Mark as irrelevant Undo
is toothpaste that you left in the sink that dried out and stuck like glue a physical or chem change? also wat about leaves changing colors in the fall? is it physical because changing color is usually physical change. scrambling an egg s physical or...
Answer:
The dried toothpaste in the sink is neither a physical or chemical change. It is a change in formulation...
John C at Yahoo! Answers Mark as irrelevant Undo
also explain to me the diffirence between a physical change and a chemical changhe...also a chemical property and a physical property give examples please....and is belnding metal sheets chemical or physical property
Answer:
Physical change is something that doesn't actually change the object. The change can be undone. An example...
Lilcrazy at Yahoo! Answers Mark as irrelevant Undo
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