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Is hot glass cracking when placed into cold water a chemical or physical change?
It is a physical change because the chemical composition of the glass does not change.
What Sweating coffee with sugar is a physical or chemical change?
Sweating coffee with sugar is primarily a physical change. When sugar dissolves in coffee, it does not alter the chemical composition of the sugar itself; it simply disperses in the liquid. The process of sweating, or condensation, occurs when moisture from the air collects on the surface of the coffee, which also represents a physical change as it involves the transition of water vapor to liquid.
Can you give 5 examples of physical changes and justify?
Melting of ice: Ice melting into water is a physical change because it only involves a change in state from solid to liquid, without altering the chemical composition of water molecules. Boiling of water: Water boiling into steam is a physical change as it involves the conversion of liquid water into water vapor, without any chemical reactions taking place. Crumpling a piece of paper: Crumpling a piece of paper is a physical change because it only alters the shape and appearance of the paper without changing its chemical composition. Freezing water: Freezing water into ice is a physical change as it involves the transformation of liquid water into a solid state without any alteration in the chemical properties of water. Breaking a glass: Breaking a glass is a physical change because it involves the glass shattering into smaller pieces, changing its physical appearance but not its chemical composition.
Is hot glass cracking when placed in cold water a chemical or physical change?
Physical. The glass expands or contracts depending on temperature, when you put a hot glass into cold water part of the glass cools and contracts while some of it is still in it's hot, expanded state.
Is it a physical change chemical change when salt dissolves in water?
Physical
Is hot glass cracking when placed into cold water a chemical or physical change?
It is a physical change because the chemical composition of the glass does not change.
Is possolving table salt in a glass of water a physical change of a chemical change?
It is a physical change because the chemical composition of the salt and water does not change.
Is salt dissolving in a glass of water a chemical change?
No. It is a physical change.
Is a broken glass of water on the floor a physical or chemical change?
If it is resting on the floor, there is no change at all.
Is dropping a penny into a glass of water a physical change?
Yes
Is on a hot day drops of water collect on the outside of a glass holding iced tea a physical or chemical change?
Drops of water collecting on the outside of a glass holding iced tea is a physical change not a chemical change. It is simply atmospheric moisture condensing on the cold glass. Condensation is a physical process.
What is an example of a chemical change wood burning glass breaking water freezing?
The chemical change is the burning wood because the products, carbon dioxide, water, ash, and soot, have different physical and chemical properties. The other changes are physical changes because the physical and chemical properties of the substances did not change.
Is drops of water that collects on the outside of a iced tea glass on a hot day chemical or physical reaction?
its a physical reaction, called condensation
What physical property of glass would help you to separate the broken glass from water?
Broken glass is a physical change because the glass does not undergo any chemical changes by being broken. The glass could be returned to its original shape through physical means (melt and reform it). Glass is mostly silicon oxides, and the chemical bonds between the silicon and oxygen (which comprise the bulk of common glass) are not affected by breaking the glass.
Can you give 5 examples of physical changes and justify?
Melting of ice: Ice melting into water is a physical change because it only involves a change in state from solid to liquid, without altering the chemical composition of water molecules. Boiling of water: Water boiling into steam is a physical change as it involves the conversion of liquid water into water vapor, without any chemical reactions taking place. Crumpling a piece of paper: Crumpling a piece of paper is a physical change because it only alters the shape and appearance of the paper without changing its chemical composition. Freezing water: Freezing water into ice is a physical change as it involves the transformation of liquid water into a solid state without any alteration in the chemical properties of water. Breaking a glass: Breaking a glass is a physical change because it involves the glass shattering into smaller pieces, changing its physical appearance but not its chemical composition.
When a glass of water is left out in the sun the water gradually disappear is it chemical change?
Any change of state (solid to liquid, liquid to gas, or the reverse of these) is a physical change.You still have the stuff you started with (water to steam for example).A chemical change will result in totally different compounds (sugar burning will form carbon, carbon dioxide and water for example).
Is mixing salt and water a chemical change or physical?
Physical
