Question

SECTION:A
I. Answer the following questions :
1. How are number of molecules of a substance related to its number of moles? (1M)
2. The image shows two objects with mass my and mass m2. (1M)
mi
F F
M₂

Based on the model what should be the magnitude of forces Fi for m1 and F2 for m2 in
accordance with the Newton's third law of motion.
3. A stone is released from the top of a tower of height 19.6m. Calculate its final velocity
just before touching the ground. (1M)
4. Name the bio-indicator of air pollution and the air pollutant to which they are sensitive
to? (1M)​

Answer 1

Answer:

l know only 1 st question l answer that question only.

in order to calculate the number of molecules in certain grams of compound, one should use the molar mass attribute.once the number of moles is obtained, you should multiply the quantity with the Avagadro number.