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What is a chemical change that involves oxygen?
Burning
Is burning alcohol in oxygen a physical or chemical change?
It is a chemical change.
Is burning magnesium a physical change?
This is a chemical change, like any other burning reaction: magnesium is turned into magnesium oxide by burning reaction with oxygen (from air). 2Mg + O2 --> 2MgO
Which two processes are responsible for keeping the percentage of atmospheric oxygen the constant levels?
Oxygen is produced by plants and blue-green algae and consumed by burning and animals breathing.
Why burning of magnesium in air is chemical change?
magnesium burns in oxygen to form magnesium oxide. and hence this is a chemical change
Is burning of sulphur with oxygen a physical or chemical change?
Burning sulfur, or burning anything, is a chemical change.
When magnesium is burning in the presence of oxygen what are some evidence that a chemical change is occurring?
It shows the change of when the magnesium is burning in the presence of oxygen.
What is a chemical change that involves oxygen?
Burning
How would the burning of forests affect your oxygen?
In the process of photosynthesis vegetation absorb carbon dioxide and release oxygen; less forests, more pollution, more green house effect, more acidic seas, less oxygen for us.
Is burning alcohol in oxygen a physical or chemical change?
It is a chemical change.
How does burning forests affect the environment?
when burning forests it damages the environmentby causing more CO2 in the air and less trees to breathe in the CO2 and giving oxygen out ,when a tree is burnt it gives off a dangerous gas into the air which is methane.
Why is a burning candel a chemical change and not a physical changes?
Burning is a chemical reaction with oxygen (oxidation).
Why is anything burning a chemical change?
Burning is oxidation, which means that the compounds in whatever is burning are being chemically combined with oxygen.
What would happen if the vast areas of forests are cleared?
Oxygen levels will decrease and species of animals will gradually disappear.
Is burns in the presence of oxygen physical or chemical change?
The process of burning in the presence of oxygen is that of a chemical change. It is a chemical change and not a physical change because the prodects do not have the same properties as the reactants.
Had magnesium Ribbon and oxygen undergone a change in properties after burning?
Yes
If humans continue to destroy rain forests what mite happen to the balance between carbon dioxide?
the carbon levels increase dramatically and oxygen levels will go down
