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Is welding a physical change or chemical change?
Welding is a physical change because it involves the joining of two pieces of metal through the application of heat and pressure, without altering the chemical composition of the base materials.
Is the pressure of contained neon gas increases as more gas is added to the container a chemical change?
No, the increase in pressure of contained neon gas as more gas is added to the container is a physical change, not a chemical change. This change is due to the gas particles colliding more frequently with the walls of the container, resulting in an increase in pressure without any new substances being formed.
Is blowing up a balloon a physical or chemical change and why?
Blowing up a balloon is a physical change because the air being blown into the balloon does not alter the chemical composition of the balloon material. The change is reversible, as the balloon can be deflated and reinflated multiple times without changing its chemical makeup.
Is change in size a physical change?
Yes, a change in size is a physical change, as it does not alter the chemical makeup of the substance. Physical changes involve a transformation in the appearance or state of a material without changing its chemical composition.
Is chlorine gas liquefies at - 35 degree celsius under normal pressure a chemical or a physical change?
The liquefaction of chlorine gas at -35 degrees Celsius under normal pressure is a physical change. This is because the change in state from a gas to a liquid does not alter the chemical composition of the substance, only its physical state.
Gas under pressure physical or chemical change?
Physical change.
Is welding a physical change or chemical change?
Welding is a physical change because it involves the joining of two pieces of metal through the application of heat and pressure, without altering the chemical composition of the base materials.
Is the pressure of contained neon gas increases as more gas is added to the container a chemical change?
No, the increase in pressure of contained neon gas as more gas is added to the container is a physical change, not a chemical change. This change is due to the gas particles colliding more frequently with the walls of the container, resulting in an increase in pressure without any new substances being formed.
Is stapling an envelope a physical change or chemical?
A physical change
How do the physical and chemical properties properties of the elements change?
periodically within a group
Is formation of gas a chemical or physical change?
Physical, because the gas is still the same gas, just under pressure Some gasses may undergo spontaneous chemical reactions under very high heat and/or pressure. For example ozone under high pressure will fairly rapidly decay into oxygen gas.
Is blowing up a balloon a physical or chemical change and why?
Blowing up a balloon is a physical change because the air being blown into the balloon does not alter the chemical composition of the balloon material. The change is reversible, as the balloon can be deflated and reinflated multiple times without changing its chemical makeup.
Is change in size a physical change?
Yes, a change in size is a physical change, as it does not alter the chemical makeup of the substance. Physical changes involve a transformation in the appearance or state of a material without changing its chemical composition.
Is chlorine gas liquefies at - 35 degree celsius under normal pressure a chemical or a physical change?
The liquefaction of chlorine gas at -35 degrees Celsius under normal pressure is a physical change. This is because the change in state from a gas to a liquid does not alter the chemical composition of the substance, only its physical state.
Is oxygen a chemical change or a physical?
Oxygen is a chemical element, so its presence does not involve a chemical change. It undergoes physical changes such as changes in state (gas to liquid) based on temperature and pressure.
Is chlorine gas liquefies at 35 degree celsius under normal pressure a chemical or a physical change?
The liquefaction of chlorine gas at 35 degrees Celsius under normal pressure is a physical change. It involves a change in the state of the substance (from gas to liquid) without altering its chemical composition.
Is painting a door a physical or chemical change?
Physical change of the paint, not the door.
