The sentence is FALSE. The space inside the solid is the volume of the system.
Answer:
Respiratory System:
Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)
Answer:
To isolate the microorganism from the mice and determine if it is identical to the original unknown bacteria.
Explanation:
The next step to take is to isolate the microorganism from the mice and determine if it is identical to the original unknown bacteria.
Koch's postulates opines four criterion for which a microbe will be regarded as a causative agent of a disease if the following takes place.
That, the microorganism should be present in all the organism suffering from the disease. That these isolated microorganism are meant to be grown in a pure culture. After being grown in the culture, they should be reintroduced in the susceptible but healthy host. In conclusion, from the experimental host, the microorganism must be re-isolated. Hence, cultured to see whether it is identical to the original specific microorganism.
When The balanced equation is:
2Al + 3CuCl2 ⇒3 Cu + 2AlCl3
So, we want to find the limiting reactant:
1- no. of moles of 2Al = MV/n = (Wt * V )/ (M.Wt*n*V) = Wt / (M.Wt *n)
where M= molarity, V= volume per liter and n = number of moles in the balanced equation.
by substitute:
∴ no. of moles of 2Al = 0.2 / (26.98 * 2)= 0.003706 moles.
2- no.of moles of 3CuCl2= M*v / n = (0.5*(15/1000)) / 3= 0.0025 moles.
So, CuCl2 is determining the no.of moles of the products.
∴The no. of moles of 3Cu = 0.0025 moles.
∴The no.of moles of Cu= 3*0.0025= 0.0075 moles.
and ∵ amount of weight (g)= no.of moles * M.Wt = 0.0075 * M.wt of Cu
= 0.0075 * 63.546 =0.477 g