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A chemical change is a process by which one or more chemicals become different chemicals. So, burning is a classic example of this. Methane, when burned, combines with oxygen to form water and carbon dioxide. Two chemicals become two other chemicals. In comparison, in a physical change the chemical identity remains the same even though physical attributes change. If I saw a piece of wood in half, the wood has changed, but it is still wood. I just have two pieces instead of one.
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What has no chemical change but keeps it own properties and can be separated?
a mixture
What is the difference between physical change and chenical change?
In a physical change, the chemical composition of the substance undergoing the change remains the same. In a chemical change, atoms are rearranged, forming new products with their own unique chemical compositions and properties, different from the original substance or substances.
Why is spoiling food a chemical change?
Food spoilage is a chemical change because it is caused both by oxidation of fats and the chemical changes involved when fungi and bacteria use enzymes to use the food for its own development.
Is burning a fire a physical or chemical change?
Burning is a chemical change.
What type of change when a substance changes into a new substance?
chemical
What is chemical reaction physical reaction?
A physical change is one in which the chemical composition of the substance does not change. A chemical change is one in which new products are formed with their own unique chemical compositions and properties.
What is the indcators of chemical change?
An indicator of chemical change is when he object doesn't look like its own or it change its principles like shape, taste and texture.
What are 5 key words in a chemical change?
These are: reaction, chemical formula, reactant, product, chemical equation.
What has no chemical change but keeps it own properties and can be separated?
a mixture
Why can dissolving be both chemical and physical change?
because they have their own masses
What has no chemical change-each keep its own properties but can be separated?
Atoms.
What has no chemical change and keep its own properties and can be separated?
You are describing a mixture.
Chemical change is what?
A process in which reactants are changed into one or more different products
What is the difference between physical change and chenical change?
In a physical change, the chemical composition of the substance undergoing the change remains the same. In a chemical change, atoms are rearranged, forming new products with their own unique chemical compositions and properties, different from the original substance or substances.
What is it called when there is no chemical change each keeps its own property's and it can be changed?
atom
Is combustion a physical change or a chemical change?
Combustion is basically a chemical reacting with oxygen to become the oxide and water is produced. So when alcohol combusts, for example, it is changed (burned) to carbon dioxide and water. In other words, there is a chemical change.
If a new substance is produced is it a chemical change?
Correct; a chemical change produces a new substance, or in other words, an existing substance changes into a different substance.
