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Is A marshmallow is toasted over a campfire physical or chemical change?
The answer is physical because in physical they are 5 senses see, hear, touch,smell. The toasted marsh mallow you can taste it, smell it when you are far, touch it when you eat it, you can hear it when it comes out of the oven,and you can see it when it's on your plate.
What must you know if a chemical change occurs?
fizzingcolor change (of course, this exempts artificial coloring)odorformation of precipitateproduction of gasformation of new substance (elemental bonding)
Is water freezing to form a ice a chemical change?
No, freezing is not a chemical change. It is a physical one. It (freezing) is reversable, and the substance that is changing state to a solid or from a solid is not undergoing any chemical changes.
Phsical or chemical change?
there are two changes in matter: physical change and chemical change. physical change means the change in size, shape, texture and any other physical characteristics, but no any new substance made or added. while in chemical change, there's a change in the object's physical appearance but also made a new substance.
List four clues that a chemical reaction is occurring?
To tell if a chemical reaction has occurred look for these four things: 1) color change 2) the formation of gas bubbles 3) formation of a precipitate 4) temperature change
What are three things that are often indications of chemical changes?
Chemical changes can be identified by 1. Color change 2. Fizzing 3. Temperature changes 4. Odor changes 5. Change in the state of matter (solid, liquid, gas)
What are the 5 indications of a chemical change?
1. releasing of heat 2. change of color 3. bubbling 4. change of smell 5. precipitation
List 5 pieces of evidence that a chemical change description?
formation of a precipitate formation of a gas color change change in temperature change in odor disappearance of a solid
What 5 clues when considering a physical change?
5 clues of a chemical change
What is chemical change give 5 example?
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What are the 5 characteristics of chemical change?
During a chemical change the structure of molecules (as chemical composition) is changed. Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds
What is the average latency period is before person shows indications of HIV?
around 5 years
What is the differences between chemical and physical change?
A chemical change involves a change in a substance's chemical properties (characteristics that describe how it interacts with other substances).A physical change involves a change in a substance's physical properties(characteristics that describe certain features one can see with their 5 senses).
Examples chemical change?
1.burning a piece of paper 2.water evaporation 3.milk goes sour 4.match is lit 5.rusting of screws
Is A marshmallow is toasted over a campfire physical or chemical change?
The answer is physical because in physical they are 5 senses see, hear, touch,smell. The toasted marsh mallow you can taste it, smell it when you are far, touch it when you eat it, you can hear it when it comes out of the oven,and you can see it when it's on your plate.
What are the 5 signs of a chemical changing?
Five signs of Chemical changes are... 1. light is emitted 2. sound 3. new smell 4. bubbles 5. changes in density There are more than five signs, but theses are the ones I can think of right now.
List 5 places in India whose name is not change from ancient time?
Ayodhya, Rameshwaram, Kuru-kshetra, Mathura, Gaya.
