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the calcuim diposits into them
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∙ 13y ago
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When an object or solution changes appearance is it a chemical change?
Not necessarily. When ice melts into water, its appearance changes, since ice is a solid and water is a liquid, but that's a physical change. Both water and ice are H2O, so the chemical composition does not change, making it a physical change and not a chemical change. However, when iron reacts with oxygen to produce rust, its appearance also changes. You end up with iron oxide (a.k.a. rust) which has a different chemical composition than just iron and just oxygen. That's a chemical change. If you end up with something new that you didn't have before, it's a chemical change.
How does a penny affect water?
Supposidly, a bag of water with a penny in it keeps flys away. However, you really don't need the penny and a half filled bag of water will catch some flys.
Does lightning a candle change its appearance?
does lghtning a candle chage its appearance?
Why does a penny sink faster in water than soap?
The density of a penny is higher.
What change occurs that alters the appearance of matter?
physical change
Why does water stay long on a penny?
it will change the color to brown
When does Penny Marko make her first appearance in Spider-Man 3?
Penny Marko makes her first appearance a few minutes from Marko's first appearance and before he transforms into the Sandman.
How can water change the appearance of a river delta?
It breaks open rocks (erosion)
How could you explain that the change that take place in when salt is added to water is physical change?
It is a physical change because when salt is added to water,it is dissolved in it which only changes its physical appearance.
Why does a penny hold water?
sit the glass of water on the penny
Is it true a physical change never alters the form or appearance of a substance?
No. For example, ice to water.
What type of changes occur when water changes from liquid to solid?
It is a physical change because only its appearance changes. It is still water and not a different substance.
Can you change the appearance of a Rolls-Royce?
you can change the appearance of any car if you got moneu
How do you change your appearance in Star Wars battle front?
Sorry but you can't. However, your appearance does change when you change your class.
When an object or solution changes appearance is it a chemical change?
Not necessarily. When ice melts into water, its appearance changes, since ice is a solid and water is a liquid, but that's a physical change. Both water and ice are H2O, so the chemical composition does not change, making it a physical change and not a chemical change. However, when iron reacts with oxygen to produce rust, its appearance also changes. You end up with iron oxide (a.k.a. rust) which has a different chemical composition than just iron and just oxygen. That's a chemical change. If you end up with something new that you didn't have before, it's a chemical change.
How can you say if a thing undergoes physical change?
If the thing can change into the original appearance, just for example "if the ice melt it becomes liquid or water and if the water you put it into the freezer it will turn to ice again".
Which object has the greatest density a ping-pong ball a penny water or a duck?
Penny. Put the ball, duck and penny in water. Only the penny sinks.
