harmful effects of chemical changes are-
-acid rain
-rust
-chemicals in an anti spot cream reacting with a silver necklace, turning it black
-exhaust fumes
-spoilage of foods
-chemical fertilizers
Chemical change refers to the transition between one chemical state to another state that may be better or worse. Some of the bad effect of these chemical changes include fading of clothes and rusting of iron.
useful
photosynthesis
cooking food
process of digestion
harmful
pollution
rusting
taking highly acidic food
1.)Air pollution
2.)Water pollution
3.)Land pollution
Animals plants and people will adapt and envolve to match the environment
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death
For physical its to much freezing, too much evaporation, too much condensation
Depending on what are the thing that are undergoing the changes mentioned.
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Physical and chemical change can have many positive effects on humans. The process of growth involves many reactions and visible changes, resulting in a stronger, more intelligent person.
the substance will become an entirley new substance.
If you bend a paper clip it is a physical change because it is still a paper clip. It's chemical identity has not changed. In a chemical change, the chemical identity of a substance changes. For example, if the paper clip were made of steel and rusted, then it's chemical identity would change to include oxygen chemically bonded to the metal, iron oxide.
Depending on what are the thing that are undergoing the changes mentioned.
good effect of these chemical change and physical change in our enviroment
Two effects that are caused by a chemical change are changes from one substance into another. Another effect that can be caused by a chemical change is a change in the temperature of the surrounding system and substance, or a change in color of the substance.
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a bad effects is an acid rain it contains a lot of water it can cause a brain damage. a good effect is when you breath in a good place where their are no pollution.
Molecules permanently change. In a physical change the effects are reversible.
rock
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it is dangerous to humans
it is dangerous to humans
it is dangerous to humans
both, every chemical change causes a physical change, or the effects would not be apparent or even noticeable.