The iron in blood exists in bound form (it forms part of haemoglobin), so the oxygen cannot oxidise it and form rust.
The rusting of iron is given by the balanced equation:4Fe + 3O2 --> 2Fe2O3
Rust is a chemical reaction to the surfaces of iron or steel becoming damp. When iron or steel get wet, the surface reacts with oxygen in the air and the water (usually rainfall) causing the metal to rust.
all the options given are chemical changes.
Oxygen is given off in photosynthesis.Oxygen is utilized in respiration.It acts as last electron acceptor.
The plants that plants that inside that water are green and are autotrophs and can produce their food by photosynthesis through the light which come in water of sun and they made their food through photosynthesis. During this process the oxygen is also produced which is used by plants for respiration and access oxygen is given out which is then used by the sea animals for respiration.
The rusting of iron is given by the balanced equation:4Fe + 3O2 --> 2Fe2O3
The rusting of the iron is a slow oxidation. In this slow oxidation matter links up with oxygen very slowly. There is no flame. THE HEAT THAT IS GIVEN OFF IS SO SLIGHT THAT IT CANNOT BE FELT.
Rust is a chemical reaction to the surfaces of iron or steel becoming damp. When iron or steel get wet, the surface reacts with oxygen in the air and the water (usually rainfall) causing the metal to rust.
The homonym of presence is presents, which refers to gifts given on special occasions.
The definition of the word presence is existing in a specific place at any given time. A presence is generally felt, but it is not seen.
The definition of the word presence is existing in a specific place at any given time. A presence is generally felt, but it is not seen.
the blood is given oxygen as it passes next to the alveoli in the lungs. The process by which the blood gets oxygen is called diffusion
seneral
The name given to the inside of your hand is called the palm. :)
Oxygen!
The gas given off by photosynthesis is oxygen, plants take in carbon dioxide and generate it into oxygen.
all the options given are chemical changes.