Answer: 
molecules of 
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
1 mole of contains = molecules
0.128 mole of contains = 
molecules
Thus there are molecules of
That is the symbol that depicts an oxidizing reagent
Answer:
d is the right one I think
Answer:
11/12 full
Explanation:
The correct question is
Drum X is 1/2 full of oil and drum Y, which has twice the capacity of drum X, is 2/3 full of oil. If all of the oil in drum X is poured into drum Y, then drum Y will be filled to what fraction of its capacity?
A) 3/4
B) 5/6
C) 11/12
D) 7/6
E) 11/6
Solution
Let Capacity of Drum X = 150L
and Drum Y = 300L
Oil in Drum X = 75 L
Oil in Drum Y = 2/3 * 300 = 200L
Oil poured in to Drum Y => Oil in Drum Y = 275L
Capacity Ratio = 275/300 = 11/12
Parts of respiratory system:
Nose and Nasal Cavity, mouth, Pharynx, Larynx, Trachea, Bronchi and Bronchioles, Lungs and Muscles of Respiration.
Respiratory system function:
Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood.
Alveoli:
Alveoli are tiny sacs of air in your lungs that take up the oxygen you breathe and keep it going. The alveoli ventilate, diffuse and peruse in your lungs.
