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What is a change in phase from a solid directly to a gas is called what?
chemical change
which of the following is an example of a chemical change?
A solid reacting with a gas to form a new solid
What is a sign of a reaction oh a chemical change?
a colour change, a gas produced or a precipitate (new substance/solid) formed.
What change takes affect when you change solid to liquid?
A physical change. Changing H2O from a solid to a liquid or a liquid to gas does not cause any chemical change as in the end you still have H2O.
Is snow forming a physical or chemical property?
It is a physical change: water changes from gas to solid.
What is a change in phase from a solid directly to a gas is called what?
chemical change
Is the change between solid liquid and gas a physical or chemical change?
Physical
Is solid liquid or gas a chemical or physical property?
interconversion between solid to liquid to gas is physical change
which of the following is an example of a chemical change?
A solid reacting with a gas to form a new solid
Is iodine becomes a purple gas a chemical change?
Yes, iodine becoming a purple gas is a physical change, not a chemical change. A chemical change involves the formation of new substances with different chemical properties, whereas in this case, the iodine is just changing its physical state from solid to gas without forming any new substances.
What are the three signs that a chemical change is occurring?
solid,liquid,or gas
Does a chemical change occur when a substance changes phase?
No, a change in phase is a physical change, not a chemical change. In a phase change, the substance's state changes (solid, liquid, gas) due to differences in temperature or pressure, but the chemical composition remains the same.
Is sublimation of naphthalene a physical or chemical change?
A liquid evaporating is a physical change. Anything changing from a solid to a liquid (or liquid to solid), or from a liquid to gas (or gas to liquid) is a physical change).-Alec Vasquez
Is a change in state an indicator of a chemical reaction?
It is a change in physicalness
Is freezing nitrogen gas a chemical change?
No, freezing nitrogen gas does not involve a chemical change. It is a physical change where the nitrogen gas transitions from a gaseous state to a solid state without any chemical reactions taking place.
What is a sign of a reaction oh a chemical change?
a colour change, a gas produced or a precipitate (new substance/solid) formed.
Is deposition chemical or physical change?
Deposition is a physical change because it involves a substance transitioning directly from a gas to a solid state without going through the liquid phase. It is the reverse process of sublimation, where a solid changes directly into a gas.
