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Is the splitting of liquid water into oxygen gas and hydrogen gas a physical change?
no, it is chemical.
Is hydrogen burning a physical or chemical change?
The burning of hydrogen is a chemical change because it involves the rearrangement of the atoms in the hydrogen molecule to form water. This process also releases energy in the form of heat and light.
What is a physical change that takes place when oxygen and hydrogen are combined to form H2O?
When oxygen and hydrogen combine to form water there is a chemical change, not a physical change. That may be followed by a physical change, depending on the conditions when the chemical change occurs. You may, for example begin with water vapor and, if the temperature is low enough, it will condense (a physical change) to liquid water.
Is pouring liquid a chemical change or physical?
A physical change.
When Hydrogen sulfide is boiling is it a chemical or physical change?
Boiling hydrogen sulfide is a physical change, as it is a reversible process where the substance changes from a liquid to a gas due to the absorption of thermal energy. The chemical composition of hydrogen sulfide remains the same during boiling.
Is liquid to gas chemical change?
No, the change from liquid to gas is a physical change, not a chemical change. In this process, the substance's molecular structure remains the same, only its physical state changes from liquid to gas.
Is liquid to a gas chemical or physical change?
it is a change of state, a physical change.
Is changing liquid to gas a chemical change or physical change?
physical change
Is dissolution of a solid in a liquid physical or chemical change?
a physical change
When a liquid is expanded by heat is that a chemical of physical change?
It is a physical change because the chemical composition of the substance does not change.
Is a liquid at normal temperatures and pressures a physical or chemical change?
A liquid at normal temperatures and pressures is a physical change. When a substance changes from a solid to a liquid or from a gas to a liquid without any chemical reactions taking place, it is considered a physical change.
Is water a physical or chemical change?
Water changing from liquid to solid (ice) or gas (steam) is a physical change, as the chemical composition of water remains the same. However, when water undergoes electrolysis to produce hydrogen and oxygen gas, it is a chemical change as the chemical composition of water is altered.
