carbon dioxide
photosynthesis makes oxygen
Oxygen makes up about 21% or approximately 1/5 of the air.
Ozone is made of O3, whereas the oxygen you intake is O2.
it makes oxygen + glucose.
Oxygen can be made and safely collected on a small scale in the laboratory using chemicals such as
Heat is made when the temperature changes and the oxygen in the air becomes warmer.
It is a molecule made up of sodium, oxygen, and hydrogen. (NaOH)
Erythrocytes are made up of a protein called haemoglobin. This type of protein can bind four molecules of oxygen using one molecule. This makes it an effective carrier of oxygen.
what makes water is 2 hydrogen atoms and 1 oxygen atom if you think its wrong then your wrong! XD
Water is H2O, which means: It is made of hydrogen, and oxygen, which makes it a mixture.
Nitrogen makes up about 78% of Earth's atmosphere, while oxygen makes up about 21%. Therefore, nitrogen and oxygen together make up approximately 99% of the air we breathe.
ALL three are elements belonging to Periodic table.