Answer:
9 L
Explanation:
According to the question , the given reaction is -
2NO(g) + O₂(g)------->2NO₂(g)
Since ,
At STP ,
One mole of a gas occupies the volume of 22.4 L.
Hence , as given in the question -
9 L of NO , i.e .
22.4 L = 1 mol
1 L = 1 / 22.4 mol
9 L = 1 / 22.4 * 9 L = 0.40 mol
From the chemical reaction ,
The Oxygen is in excess , hence NO becomes the limiting reagent , and will determine the moles of product .
Hence ,
2 moles of NO will produce 2 moles of NO₂.
Therefore ,
0.40 mol of NO will produce 0.40 mol of NO₂.
Hence , the volume of NO₂ can be calculated as -
1 mol = 22.4 L
0.40 mol = 0.40 * 22.4 L = 9 L
Answer:
1) prokaryote : no nucleus and is unicellular
2)nucleus : contains genetic information
3) structure: the way it is made
4) eukaryotes : has a nucleus , some are unicellular
5) organelles : perform the different functions the cell need
6) tissue: composed of many cell
7)cell : basic units of Life
8) Mathias schleiden : concluded that all plants are made up of cell
9) Theodore Schwann :concluded all animals are made up of cell
10) Rudolf Virchow : concluded that all cells come from pre-existing cell
Answer:
Cooper and zinc if I remember right
The answer is most likely C
