21% o2
78% n2
<1% others
The usual state of oxygen and hydrogen: they are gases at room temperature.
The composition of air depends upon altitude.
The usual state of oxygen is a gas at room temperature and pressure.
gas composition in air is the sum of the gas individual element and that of the air i.e oxygen and nitrogen
Yes, using an electric bar heater to heat a room involves a physical change. The heater converts electrical energy into thermal energy, warming the air in the room. This process does not alter the chemical composition of the air or the heater itself, but simply changes the temperature and energy state of the air molecules. Thus, it is considered a physical change rather than a chemical one.
No, the state of air in an isolated room is not completely specified by just temperature and pressure. Other factors, such as humidity and composition (e.g., presence of pollutants or gases), also play a role in determining the state of the air in the room.
The usual state of oxygen and hydrogen: they are gases at room temperature.
The composition of air depends upon altitude.
The usual cause is when air is holding the maximum amount of water possible.
The composition is the same, the air is just less dense.
On Air Canada, the usual amenities can be offered on a typical first class flight, including luxurious leg room, personal televisions, and better food.
The usual state of oxygen is a gas at room temperature and pressure.
In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.In all the usual ways that the rest of the world does, so by rail, road, air and sea.
gas composition in air is the sum of the gas individual element and that of the air i.e oxygen and nitrogen
It is done by suspending the roots of the plant in mid air and by spraying there roots with water and mixture of nutrients.Plus they are kept in a room wher ther is optimum sunlight ,temperature,moisture and air composition for growth.
no
The composition of liquid air is: 80 % nitrogen, 19 % oxygen 0,9 % argon, 0,1 % minor gases.