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Is combining hydrogen and oxygen a physical change or a chemical change?
This is a chemical change.
Is combining hydrogen and oxygen to make water physical?
This is a chemical reaction.
What are the two criteria for whether a change is chemical or physical?
Oxygen and hydrogen
Is hydrogen and oxygen combing into water a chemical change?
Yes, the combination of hydrogen and oxygen to form water is a chemical change. In this reaction, new bonds are formed and energy is released, resulting in a new substance with different properties than the original elements.
When hydrogen gas and oxygen gas react they burn and form water What kind of change is that?
physical
Is combining hydrogen and oxygen a physical change or a chemical change?
This is a chemical change.
Is hydrogen and oxygen combining to form water and example of a physical change?
No, it is not.
Is Oxygen and hydrogen combining to form water physical or chemical change?
This is a chemical change.
Is combining hydrogen and oxygen to make water is a physical?
No.
Is combining hydrogen and oxygen to make water physical?
This is a chemical reaction.
What atoms can you get by combining oxygen and hydrogen?
If you have 1 hydrogen and 2 oxygen, you get water.
Is breaking water up into oxygen and a hydrogen gas a physical or chemical change?
Breaking water into the component parts of hydrogen and oxygen is a CHEMICAL change.
What are the two criteria for whether a change is chemical or physical?
Oxygen and hydrogen
Is Oxygen and hydrogen combining to form water a physical or chemical change?
The formation of water from oxygen and hydrogen is a chemical change because new chemical bonds are formed between the atoms to create a new substance with different properties than the original elements.
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 using electricity to separate water into hydrogen and oxygen a chemical change?
Yes, using electricity to separate water into hydrogen and oxygen is a chemical change because it involves breaking the bonds between the hydrogen and oxygen atoms in water molecules to form separate hydrogen and oxygen molecules. This process is known as electrolysis.
Can you create water by combining hydrogen and oxygen?
Yes, water can be created by combining hydrogen and oxygen in a chemical reaction. The formula for water is H2O, which means two hydrogen atoms and one oxygen atom combine to form a water molecule.
