Answer:
3
Explanation:
third answer might be right
Answer:
Molar mass (M) = mass(m) / number of moles (n)
To find the mass of Al2O3 first calculate it's molar mass
thus
M(Al2O3) = (27×2) + (16 × 3)
= 54 + 48
= 102g/mol
Mass of Al2O3 = molar mass × number of moles
= 102 × 0.513
= 52.326g of Al2O3
Hope this helps
The answer is <span>commensalism</span>
Your answer to this question is port side sand dune
Answer:

Explanation:
Given that the volume is 
The air flows (F) at the rate of
. The concentration of carbon monoxide in the air is 5%.
Let Q be the amount of the carbon monoxide present in the room at time t. then,

Also,


Thus,
