A principle that is not associated with the cell theory is that very few cells reproduce. In fact all cells reproduce because they are the basic units of life.<span>2 people </span><span>found this useful</span>
Answer:
64
Explanation:
Nitrogen combines directly with oxygen at very high temperatures to form nitrogen(ii) oxide. This is the reaction that occurs during lightning flashes. Atmospheric nitrogen and oxygen combines during the high temperatures obtained in lightning flashes to form nitrogen (ii) oxide.
Equation of the reaction is given below:
N(g) + O(g) ---> 2NO(g)
From the equation of the reaction, 1 mole of nitrogen gas combines with one mole of oxygen gas to produce 2 moles of nitrogen (ii) oxide.
Therefore, 2 moles of oxygen gas will react with 2 moles of nitrogen gas
Mass of oxygen gas that is 2 moles of the gas is obtained from the formula; mass = number of moles * molar mass
Molar mass of oxygen gas = 32.0 g/mol
Mass of 2 moles of oxygen gas = 2 * 32.0 = 56 g
Therefore, the mass of oxygen required in grams is 64
Answer:
they suggested that DNA could make exact copies of itself
Explanation:
The two had shown that in DNA, form is function: the double-stranded molecule could both produce exact copies of itself and carry genetic instructions.Watson and Crick developed their ideas about genetic replication in a second article in Nature.
