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What else can I help you with?
Is it a chemical change when 2 liquids form a solid?
No because water condense on the side of a cold glass and then evaporate again. Further answer Really, if a gas becomes a liquid it's a physical change because the gas has changed its phase from gas to liquid. It's not related to water particularly.
Why are magnesium sodium and aluminium elements?
These elements are considered pure elemental substances because they cannot be broken down further into simpler substances by chemical reactions. They are made up of only one type of atom, each with its own unique chemical and physical properties.
Is digesting a candy bar a physical process or chemical process?
Digesting a candy bar involves both physical and chemical processes. Initially, the physical process of chewing breaks down the candy bar into smaller pieces, increasing its surface area for enzyme action. Then, chemical processes such as enzyme reactions in the digestive system help break down the candy bar further into nutrients that can be absorbed by the body.
Is water evaporating into steam chemical or physical change?
It's a physical change because no new substances are formed, the molecules simply get further apart.
If you melt magnesium metal is it a chemical change?
Yes, the combustion of magnesium, or anything else for that matter, represents a chemical change. For magnesium, the combustion reaction results in the loss of magnesium and the production of magnesium oxide. Clearly a chemical change.
Is it a chemical change when 2 liquids form a solid?
No because water condense on the side of a cold glass and then evaporate again. Further answer Really, if a gas becomes a liquid it's a physical change because the gas has changed its phase from gas to liquid. It's not related to water particularly.
Is food coloring dissolving in water not a chemial change?
No, the dissolving of food coloring in water is not considered a chemical change; it is a physical change. When food coloring dissolves, the molecules disperse in the water, but their chemical structure remains unchanged. This process can be reversed, as the coloring can be separated from the water through evaporation, further indicating that it’s a physical change rather than a chemical one.
Is water evaporating into steam physical or chemical?
It's a physical change because no new substances are formed, the molecules simply get further apart.
Is mixes with water physical or chemical property?
Mixing with water is a physical property. When a substance dissolves in water, it does not change its chemical composition; rather, it disperses at the molecular level. This process can be reversed, allowing the original substance to be recovered, further indicating its physical nature.
Why is writing on paper a physical change?
Writing on paper is considered a physical change because it alters the surface of the paper without changing its chemical composition. The ink is deposited onto the paper, creating marks or letters, but the paper itself remains fundamentally the same material. This change is reversible to some extent, as the ink can be erased or overwritten, further supporting the idea that it is a physical alteration rather than a chemical one.
Wood and leaves rot to form humus physical or chemical?
The process of wood and leaves rotting to form humus is both a physical and chemical transformation. Physical processes such as fragmentation and decomposition break down the organic matter into smaller pieces. Chemical processes such as oxidation and microbial activity further decompose the organic matter, releasing nutrients and forming humic substances.
is The clues that indicate a chemical change are always reliable?
The clues that indicate a chemical change, such as color change, gas production, temperature change, and the formation of a precipitate, are generally reliable indicators. However, they are not infallible, as some physical changes can produce similar signs. Therefore, while these clues can strongly suggest a chemical change, confirming the change often requires further analysis or testing.
Why leaves is considered matter?
Leaves are considered matter because they are made up of atoms and molecules, which are the building blocks of matter. Leaves have mass, occupy space, and can undergo physical and chemical changes, all of which are characteristics of matter. Additionally, leaves can be broken down into smaller components, further confirming their classification as matter.
What cannot be broken down further by physical means and is therefore considered?
A substance that cannot be broken down further by physical means is considered a "pure substance." This includes elements and compounds, which are made up of one type of particle or a fixed ratio of different particles, respectively. Elements, such as gold or oxygen, consist of only one kind of atom, while compounds, like water or sodium chloride, consist of two or more different atoms chemically bonded together.
Is putting Halloween dec up physical change or a chemical change?
Putting up Halloween decorations is a physical change. This is because it involves altering the arrangement of objects without changing their chemical composition. The decorations can be taken down and reused, which further indicates that no chemical reactions are taking place.
Why are magnesium sodium and aluminium elements?
These elements are considered pure elemental substances because they cannot be broken down further into simpler substances by chemical reactions. They are made up of only one type of atom, each with its own unique chemical and physical properties.
Is digesting a candy bar a physical process or chemical process?
Digesting a candy bar involves both physical and chemical processes. Initially, the physical process of chewing breaks down the candy bar into smaller pieces, increasing its surface area for enzyme action. Then, chemical processes such as enzyme reactions in the digestive system help break down the candy bar further into nutrients that can be absorbed by the body.
