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Difference between chemical and physical change?
A chemical change is when the chemical properties of a substance changes and a physical change is when the chemical properties stay the same but the physical properties (shape, temperature etc...)
Which is the smallest particle of sugar that still has all the properties of sugar?
molecule
Is making sugar into caramel a physical or chemical?
a chemical reaction
What kind of properties can be observed only when the substances in a sample of matter are changing into different substances?
Yes, chemical properties can be determined only experimentally, as a consequence of chemical reactions. But, today chemists can made some predictions about chemical properties of a substance on the basis of existing data about chemical and physical properties.
How do chemical and physical properties differ?
chemical properties cannot be determined just by viewing or touching the substance and physical properties can be observed or measured without changing the composition of matter.
Why is burning of sugar a chemical change?
Yes, the burning of sugar is a chemical change, as it produces substances with different chemical properties than the reactants.
Compare 3 physical and 3 chemical properties of salt and sugar?
Both sugar and salt are white, very small, and grainy like sand. A few chemical similarities are that salt and sugar are both water soluble, humans need both salt and sugar to survive, and both can burn.
What is the smallest particle of sugar that can still exhibit all the properties of sugar?
The smallest particle of sugar that can exhibit all the properties of sugar is a molecule of sucrose. Sucrose is composed of one molecule of glucose and one molecule of fructose bonded together. It retains the sweet taste and other chemical properties of sugar.
Is adding sugar to cereal a physical or chemical change?
Adding sugar to cereal is a physical change because the sugar does not undergo a chemical reaction when mixed with the cereal. The sugar retains its chemical structure and properties, only altering the taste of the cereal.
What are 3 properties of sugar that make it compound?
Sugar is composed of carbon, hydrogen, and oxygen atoms arranged in a specific molecular structure. Sugar has a defined chemical formula (e.g., sucrose is C12H22O11) that indicates the types and ratios of atoms present. Sugar exhibits specific physical and chemical properties, such as solubility in water and ability to undergo chemical reactions like caramelization or fermentation.
Is mixing sugar with iodine solution a chemical change or a physical change?
Mixing sugar with iodine solution is a physical change because no new substances are formed. The sugar and iodine solution retain their individual chemical properties even when mixed together.
Is sugar a physical property or chemical?
Sugar is a chemical compound. It is a carbohydrate that consists of carbon, hydrogen, and oxygen atoms. Its structure and composition give it certain physical properties, such as being sweet and soluble in water, but overall it is considered a chemical substance.
How do we know caramelizing sugar is a chemical change?
It changes the sugar's color
Is mixing sugar and cinnamon physical or chemical?
Mixing sugar and cinnamon is a physical change, as it does not alter the chemical composition of either substance. A chemical change involves a rearrangement of atoms to form new substances with different properties.
Is sugar changing to alcohol a physical or chemical change?
Anything changing to a substance with a different identity is undergoing a chemical change.
How to copper dissolve sugar?
Copper doesn't directly dissolve sugar. When it comes to dissolving substances, it depends on their chemical properties and interactions. Copper is a metal, and sugar is a carbohydrate. They have different chemical compositions and properties, making it unlikely for copper to dissolve sugar. However, if you're conducting an experiment or process where you want to dissolve sugar using copper, it might involve indirect methods. For instance, you could use a copper container or implement a chemical reaction involving copper to change the conditions under which sugar dissolves.
How do you describe four substances and their properties based on the changes that the substances undergo?
Substances can be classified based on their physical and chemical properties, which change during processes such as phase transitions or chemical reactions. For instance, ice (solid water) melts to form liquid water, demonstrating a physical change in state while retaining its chemical identity. When iron rusts, it undergoes a chemical change, resulting in iron oxide, which has different properties than elemental iron. Similarly, when sugar dissolves in water, it demonstrates a physical change where the sugar molecules disperse, altering the solution's properties without changing the sugar's chemical structure.
