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Are the salt crystals produced when a glass of saltwater is left on a window sill for several days a chemical or physical change?
Wiki User
∙ 12y ago
It is a physical change, as salt (a solid solute) comes out of the solution as the water evaporates.
Wiki User
∙ 12y ago
Wiki User
∙ 6y agoIt is a physical change.
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Is reacts with acid to form H2 a chemical or physical properties?
Chemical. If a new substance is produced it is a chemical change.
Is mixing two substances and light is produced a chemical or physical change?
chemical
When a substance undergoes a phase change what occurs a particle change a chemical change a new substance is formed a physical change?
When a substance changes phase, this is a physical changerather than a chemical change. When water freezes to become ice, or when ice melts to become water, its all physical.
How do you know if a chemical change has occurred versus a physical one?
If a new substance is produced.
Is mixing nitric and copper metal a physical change?
It is a chemical change. As new substances are produced.
Are the changes produced by electrolysis chemical or physical in nature?
The changes produced by electrolysis are chemical.
Sunlight produced into stored energy physical or chemical change?
chemical change
Are pop cans a physical or chemical change?
Pop cans are produced by physical processes.
Is reacts with acid to form H2 a chemical or physical properties?
Chemical. If a new substance is produced it is a chemical change.
Is mixing two substances and light is produced a chemical or physical change?
chemical
Is the sun's energy is produced by physical and chemical changes in the interior?
False
When a substance undergoes a phase change what occurs a particle change a chemical change a new substance is formed a physical change?
When a substance changes phase, this is a physical changerather than a chemical change. When water freezes to become ice, or when ice melts to become water, its all physical.
Is it a physical or chemical change. Acids produced by bacteria in plaque cause teeth to decay?
Chemical change
Is limestone gives off carbon dioxide when heated physical or chemical?
chemical. a new substance was produced
When iron is immersed in a solution of hydrochloric acid hydrogen gas is produced a physical or chemical property?
This is a chemical reaction.
Is a bomb exploding a physical change?
An atomic bomb uses fission-- the splitting of atoms. It is purely a physical change, at first. Any gases produced in the air surrounding the explosion (which occurs before it touches the ground), along with the intense heat produced, causes chemical changes in the air.
Reacts with acid to form h2 is physical or chemical property?
If a new substance has been produced it must be a chemical change.
