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How is the process of making hydrogen from water both a physical and chemical transformation?
The process of making hydrogen from water involves both physical and chemical transformations. Physically, water molecules are separated into hydrogen and oxygen through a process called electrolysis. Chemically, this separation involves breaking the bonds between hydrogen and oxygen atoms, resulting in a chemical change.
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Is evaporation a chemical property?
It is not a property it is the process of turning a liquid into a gas. The enthalpy change of evaporation would be a chemical property.
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.
Is a crayon melting in the sun a physical or chemical?
Physical. It is still crayon, and the change can be undone by cooling it until it hardens.
Is the Ability to react with light - chemical or physical?
The ability to react with light is a physical process known as photochemical reactions. In these reactions, molecules absorb light energy, which excites the molecules and leads to a chemical transformation.
IS bees creating wax from sugar a physical or chemical change?
The process of bees creating wax from sugar is a physical change. It involves the physical transformation of the sugar molecules into wax molecules without any change in the chemical composition of the substances.
Is hydrogen peroxide decomposing a physical or chemical?
This is a chemical process.
Is evaporation a chemical property?
It is not a property it is the process of turning a liquid into a gas. The enthalpy change of evaporation would be a chemical property.
Is an engine moving a car chemical or physical?
The movement of a car engine is considered physical, as it involves the transformation of mechanical energy into motion. Chemical reactions may occur within the engine, such as combustion in the cylinders, but the overall process is primarily physical in nature.
Is radium decaying to lead a chemical or physical change?
The decay of radium to lead is a nuclear change, not a chemical or physical change. It involves the transformation of radium atoms into lead atoms through the process of radioactive decay. This change is due to the emission of alpha particles and does not involve any chemical reactions or changes in the physical state of the substances.
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.
Is a crayon melting in the sun a physical or chemical?
Physical. It is still crayon, and the change can be undone by cooling it until it hardens.
What if you cooked the egg is it physical or a chemical change?
Cooking an egg is both a physical and chemical change. The physical change involves the transformation of the egg from a raw to a cooked state, while the chemical change occurs as proteins in the egg denature and coagulate due to heat. The overall process involves both physical and chemical transformations.
Is the Ability to react with light - chemical or physical?
The ability to react with light is a physical process known as photochemical reactions. In these reactions, molecules absorb light energy, which excites the molecules and leads to a chemical transformation.
IS bees creating wax from sugar a physical or chemical change?
The process of bees creating wax from sugar is a physical change. It involves the physical transformation of the sugar molecules into wax molecules without any change in the chemical composition of the substances.
Why is separating water into oxygen and hydrogen chemical change?
Separating water into oxygen and hydrogen is a chemical change because it involves breaking the chemical bonds within the water molecule and forming new bonds to create the two separate elements. This process requires a reaction to occur, resulting in a chemical transformation.
How are evaporation and transformation different?
Evaporation is a phase change process in which a liquid turns into a gas at the surface of the liquid, while transformation refers to a change in the structure or composition of a substance, such as in chemical reactions or physical changes. Evaporation typically involves only a change in state, while transformation can involve various changes beyond state, such as chemical composition or physical properties.
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.
